42770660 has 24 divisors (see below), whose sum is σ = 90059256. Its totient is φ = 17062400.

The previous prime is 42770633. The next prime is 42770671. The reversal of 42770660 is 6607724.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31427236 + 11343424 = 5606^2 + 3368^2 .

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, 5354 + ... + 10686.

It is an arithmetic number, because the mean of its divisors is an integer number (3752469).

Almost surely, 2^42770660 is an apocalyptic number.

It is an amenable number.

42770660 is an abundant number, since it is smaller than the sum of its proper divisors (47288596).

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

42770660 is a wasteful number, since it uses less digits than its factorization.

42770660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5743 (or 5741 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 42770660 is about 6539.9281341617. The cubic root of 42770660 is about 349.7158510075.

The spelling of 42770660 in words is "forty-two million, seven hundred seventy thousand, six hundred sixty".