2042865440 has 96 divisors (see below), whose sum is σ = 6017203584. Its totient is φ = 636733440.

The previous prime is 2042865439. The next prime is 2042865449. The reversal of 2042865440 is 445682402.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2042865440.

It is not an unprimeable number, because it can be changed into a prime (2042865449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70589 + ... + 95228.

It is an arithmetic number, because the mean of its divisors is an integer number (62679204).

Almost surely, 2^2042865440 is an apocalyptic number.

2042865440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2042865440 is an abundant number, since it is smaller than the sum of its proper divisors (3974338144).

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

2042865440 is a wasteful number, since it uses less digits than its factorization.

2042865440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165850 (or 165842 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 2042865440 is about 45198.0689853007. The cubic root of 2042865440 is about 1268.8586766090.

The spelling of 2042865440 in words is "two billion, forty-two million, eight hundred sixty-five thousand, four hundred forty".