42477780 has 48 divisors (see below), whose sum is σ = 124113024. Its totient is φ = 10834560.

The previous prime is 42477769. The next prime is 42477791. The reversal of 42477780 is 8777424.

It is an interprime number because it is at equal distance from previous prime (42477769) and next prime (42477791).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14011 + ... + 16770.

It is an arithmetic number, because the mean of its divisors is an integer number (2585688).

Almost surely, 2^42477780 is an apocalyptic number.

It is an amenable number.

42477780 is an abundant number, since it is smaller than the sum of its proper divisors (81635244).

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

42477780 is a wasteful number, since it uses less digits than its factorization.

42477780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30816 (or 30814 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 39.

The square root of 42477780 is about 6517.4979861907. The cubic root of 42477780 is about 348.9157740171.

The spelling of 42477780 in words is "forty-two million, four hundred seventy-seven thousand, seven hundred eighty".