42780604 has 6 divisors (see below), whose sum is σ = 74866064. Its totient is φ = 21390300.

The previous prime is 42780601. The next prime is 42780611. The reversal of 42780604 is 40608724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42780601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5347572 + ... + 5347579.

Almost surely, 2^42780604 is an apocalyptic number.

It is an amenable number.

42780604 is a deficient number, since it is larger than the sum of its proper divisors (32085460).

42780604 is a wasteful number, since it uses less digits than its factorization.

42780604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10695155 (or 10695153 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 42780604 is about 6540.6883429804. The cubic root of 42780604 is about 349.7429513995.

The spelling of 42780604 in words is "forty-two million, seven hundred eighty thousand, six hundred four".