1042723440 has 360 divisors, whose sum is σ = 3976178544. Its totient is φ = 242841600.

The previous prime is 1042723411. The next prime is 1042723457. The reversal of 1042723440 is 443272401.

1042723440 is a `hidden beast` number, since 1 + 0 + 427 + 234 + 4 + 0 = 666.

1042723440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (360).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7611052 + ... + 7611188.

Almost surely, 2^1042723440 is an apocalyptic number.

1042723440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042723440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988089272).

1042723440 is an abundant number, since it is smaller than the sum of its proper divisors (2933455104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1042723440 is a wasteful number, since it uses less digits than its factorization.

1042723440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 1042723440 is about 32291.2285303610. The cubic root of 1042723440 is about 1014.0430172103.

Adding to 1042723440 its reverse (443272401), we get a palindrome (1485995841).

The spelling of 1042723440 in words is "one billion, forty-two million, seven hundred twenty-three thousand, four hundred forty".