1042201440 has 144 divisors (see below), whose sum is σ = 4064624928. Its totient is φ = 238215168.

The previous prime is 1042201399. The next prime is 1042201463. The reversal of 1042201440 is 441022401.

1042201440 is a `hidden beast` number, since 1 + 0 + 4 + 220 + 1 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41617 + ... + 61776.

It is an arithmetic number, because the mean of its divisors is an integer number (28226562).

Almost surely, 2^1042201440 is an apocalyptic number.

1042201440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042201440 is an abundant number, since it is smaller than the sum of its proper divisors (3022423488).

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

1042201440 is a wasteful number, since it uses less digits than its factorization.

1042201440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103421 (or 103410 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1042201440 is about 32283.1448282227. The cubic root of 1042201440 is about 1013.8737748881.

Adding to 1042201440 its reverse (441022401), we get a palindrome (1483223841).

The spelling of 1042201440 in words is "one billion, forty-two million, two hundred one thousand, four hundred forty".