42757660 has 24 divisors (see below), whose sum is σ = 97954416. Its totient is φ = 15548160.

The previous prime is 42757579. The next prime is 42757679. The reversal of 42757660 is 6675724.

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, 96957 + ... + 97396.

It is an arithmetic number, because the mean of its divisors is an integer number (4081434).

Almost surely, 2^42757660 is an apocalyptic number.

It is an amenable number.

42757660 is an abundant number, since it is smaller than the sum of its proper divisors (55196756).

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

42757660 is a wasteful number, since it uses less digits than its factorization.

42757660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194373 (or 194371 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 42757660 is about 6538.9341639139. The cubic root of 42757660 is about 349.6804157601.

It can be divided in two parts, 4275 and 7660, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 42757660 in words is "forty-two million, seven hundred fifty-seven thousand, six hundred sixty".