42764420 has 12 divisors (see below), whose sum is σ = 89805324. Its totient is φ = 17105760.

The previous prime is 42764419. The next prime is 42764431. The reversal of 42764420 is 2446724.

It can be written as a sum of positive squares in 2 ways, for example, as 29398084 + 13366336 = 5422^2 + 3656^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069091 + ... + 1069130.

It is an arithmetic number, because the mean of its divisors is an integer number (7483777).

Almost surely, 2^42764420 is an apocalyptic number.

It is an amenable number.

42764420 is an abundant number, since it is smaller than the sum of its proper divisors (47040904).

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

42764420 is a wasteful number, since it uses less digits than its factorization.

42764420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138230 (or 2138228 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 42764420 is about 6539.4510472975. The cubic root of 42764420 is about 349.6988429850.

The spelling of 42764420 in words is "forty-two million, seven hundred sixty-four thousand, four hundred twenty".