42797331 has 12 divisors (see below), whose sum is σ = 62045152. Its totient is φ = 28426896.

The previous prime is 42797327. The next prime is 42797353. The reversal of 42797331 is 13379724.

It is not a de Polignac number, because 42797331 - 2² = 42797327 is a prime.

It is a super-4 number, since 4×42797331⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42797311) 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, 6091 + ... + 11076.

Almost surely, 2^42797331 is an apocalyptic number.

42797331 is a deficient number, since it is larger than the sum of its proper divisors (19247821).

42797331 is a wasteful number, since it uses less digits than its factorization.

42797331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17450 (or 17447 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 42797331 is about 6541.9669060612. The cubic root of 42797331 is about 349.7885280355.

The spelling of 42797331 in words is "forty-two million, seven hundred ninety-seven thousand, three hundred thirty-one".