42380788 has 12 divisors (see below), whose sum is σ = 74577412. Its totient is φ = 21072960.

The previous prime is 42380777. The next prime is 42380791. The reversal of 42380788 is 88708324.

It can be written as a sum of positive squares in 2 ways, for example, as 5560164 + 36820624 = 2358^2 + 6068^2 .

It is a super-2 number, since 2×42380788² = 3592262383001888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42380788.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28545 + ... + 29992.

Almost surely, 2^42380788 is an apocalyptic number.

It is an amenable number.

42380788 is a deficient number, since it is larger than the sum of its proper divisors (32196624).

42380788 is a wasteful number, since it uses less digits than its factorization.

42380788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58722 (or 58720 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 42380788 is about 6510.0528415674. The cubic root of 42380788 is about 348.6500050330.

The spelling of 42380788 in words is "forty-two million, three hundred eighty thousand, seven hundred eighty-eight".