42757038 has 16 divisors (see below), whose sum is σ = 95015760. Its totient is φ = 14252328.

The previous prime is 42757021. The next prime is 42757063. The reversal of 42757038 is 83075724.

It is a junction number, because it is equal to n+sod(n) for n = 42756993 and 42757011.

It is a congruent number.

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, 395845 + ... + 395952.

It is an arithmetic number, because the mean of its divisors is an integer number (5938485).

Almost surely, 2^42757038 is an apocalyptic number.

42757038 is an abundant number, since it is smaller than the sum of its proper divisors (52258722).

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

42757038 is a wasteful number, since it uses less digits than its factorization.

42757038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791808 (or 791802 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 42757038 is about 6538.8866024729. The cubic root of 42757038 is about 349.6787201398.

The spelling of 42757038 in words is "forty-two million, seven hundred fifty-seven thousand, thirty-eight".