902358138 has 32 divisors (see below), whose sum is σ = 1971034560. Its totient is φ = 273128960.

The previous prime is 902358133. The next prime is 902358157. The reversal of 902358138 is 831853209.

It is a junction number, because it is equal to n+sod(n) for n = 902358096 and 902358105.

It is not an unprimeable number, because it can be changed into a prime (902358133) 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, 53956 + ... + 68672.

It is an arithmetic number, because the mean of its divisors is an integer number (61594830).

Almost surely, 2^902358138 is an apocalyptic number.

902358138 is an abundant number, since it is smaller than the sum of its proper divisors (1068676422).

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

902358138 is a wasteful number, since it uses less digits than its factorization.

902358138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15662.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 902358138 is about 30039.2765891591. The cubic root of 902358138 is about 966.3318926099.

It can be divided in two parts, 902358 and 138, that added together give a triangular number (902496 = T₁₃₄₃).

The spelling of 902358138 in words is "nine hundred two million, three hundred fifty-eight thousand, one hundred thirty-eight".