1423332240 has 80 divisors (see below), whose sum is σ = 4813459776. Its totient is φ = 345049600.

The previous prime is 1423332221. The next prime is 1423332329. The reversal of 1423332240 is 422333241.

1423332240 is digitally balanced in base 6, 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 (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1423332240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266931 + ... + 272210.

Almost surely, 2^1423332240 is an apocalyptic number.

1423332240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423332240 is an abundant number, since it is smaller than the sum of its proper divisors (3390127536).

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

1423332240 is a wasteful number, since it uses less digits than its factorization.

1423332240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539168 (or 539162 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1423332240 is about 37727.0756884230. The cubic root of 1423332240 is about 1124.8693813783.

Adding to 1423332240 its reverse (422333241), we get a palindrome (1845665481).

The spelling of 1423332240 in words is "one billion, four hundred twenty-three million, three hundred thirty-two thousand, two hundred forty".