38897830 has 32 divisors (see below), whose sum is σ = 73675008. Its totient is φ = 14757600.

The previous prime is 38897779. The next prime is 38897851. The reversal of 38897830 is 3879883.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29485 + ... + 30775.

It is an arithmetic number, because the mean of its divisors is an integer number (2302344).

Almost surely, 2^38897830 is an apocalyptic number.

38897830 is a deficient number, since it is larger than the sum of its proper divisors (34777178).

38897830 is a wasteful number, since it uses less digits than its factorization.

38897830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 38897830 is about 6236.8124871604. The cubic root of 38897830 is about 338.8247485089.

The spelling of 38897830 in words is "thirty-eight million, eight hundred ninety-seven thousand, eight hundred thirty".