42097388 has 24 divisors (see below), whose sum is σ = 77757120. Its totient is φ = 19887120.

The previous prime is 42097333. The next prime is 42097397. The reversal of 42097388 is 88379024.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51503 + ... + 52313.

It is an arithmetic number, because the mean of its divisors is an integer number (3239880).

Almost surely, 2^42097388 is an apocalyptic number.

It is an amenable number.

42097388 is a deficient number, since it is larger than the sum of its proper divisors (35659732).

42097388 is a wasteful number, since it uses less digits than its factorization.

42097388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1515 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 42097388 is about 6488.2499951836. The cubic root of 42097388 is about 347.8711263679.

The spelling of 42097388 in words is "forty-two million, ninety-seven thousand, three hundred eighty-eight".