1442392240 has 40 divisors (see below), whose sum is σ = 3359561760. Its totient is φ = 575924736.

The previous prime is 1442392223. The next prime is 1442392247. The reversal of 1442392240 is 422932441.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1442392247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29677 + ... + 61363.

It is an arithmetic number, because the mean of its divisors is an integer number (83989044).

Almost surely, 2^1442392240 is an apocalyptic number.

1442392240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442392240 is an abundant number, since it is smaller than the sum of its proper divisors (1917169520).

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

1442392240 is a wasteful number, since it uses less digits than its factorization.

1442392240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32269 (or 32263 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 1442392240 is about 37978.8393714184. The cubic root of 1442392240 is about 1129.8682175920.

The spelling of 1442392240 in words is "one billion, four hundred forty-two million, three hundred ninety-two thousand, two hundred forty".