2042904138 has 32 divisors (see below), whose sum is σ = 4461808320. Its totient is φ = 618428160.

The previous prime is 2042904121. The next prime is 2042904139. The reversal of 2042904138 is 8314092402.

2042904138 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2042904099 and 2042904108.

It is not an unprimeable number, because it can be changed into a prime (2042904139) 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, 51256 + ... + 81932.

It is an arithmetic number, because the mean of its divisors is an integer number (139431510).

Almost surely, 2^2042904138 is an apocalyptic number.

2042904138 is an abundant number, since it is smaller than the sum of its proper divisors (2418904182).

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

2042904138 is a wasteful number, since it uses less digits than its factorization.

2042904138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31702.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 2042904138 is about 45198.4970767834. The cubic root of 2042904138 is about 1268.8666885550.

The spelling of 2042904138 in words is "two billion, forty-two million, nine hundred four thousand, one hundred thirty-eight".