38910402 has 32 divisors (see below), whose sum is σ = 89452800. Its totient is φ = 12522384.

The previous prime is 38910401. The next prime is 38910419. The reversal of 38910402 is 20401983.

It is a super-3 number, since 3×38910402³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (38910401) 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, 10858 + ... + 13989.

It is an arithmetic number, because the mean of its divisors is an integer number (2795400).

Almost surely, 2^38910402 is an apocalyptic number.

38910402 is an abundant number, since it is smaller than the sum of its proper divisors (50542398).

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

38910402 is a wasteful number, since it uses less digits than its factorization.

38910402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24887 (or 24881 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 38910402 is about 6237.8202923778. The cubic root of 38910402 is about 338.8612479392.

The spelling of 38910402 in words is "thirty-eight million, nine hundred ten thousand, four hundred two".