42997356 has 36 divisors (see below), whose sum is σ = 111342504. Its totient is φ = 13982400.

The previous prime is 42997351. The next prime is 42997379. The reversal of 42997356 is 65379924.

42997356 = 1004² + 1005² + ... + 1044².

It is a happy number.

42997356 is a `hidden beast` number, since 4 + 299 + 7 + 356 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (42997351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13090 + ... + 16041.

Almost surely, 2^42997356 is an apocalyptic number.

It is an amenable number.

42997356 is an abundant number, since it is smaller than the sum of its proper divisors (68345148).

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

42997356 is a wasteful number, since it uses less digits than its factorization.

42997356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29182 (or 29177 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 42997356 is about 6557.2369180929. The cubic root of 42997356 is about 350.3326252834.

The spelling of 42997356 in words is "forty-two million, nine hundred ninety-seven thousand, three hundred fifty-six".