42977730 has 16 divisors (see below), whose sum is σ = 103146624. Its totient is φ = 11460720.

The previous prime is 42977729. The next prime is 42977741. The reversal of 42977730 is 3777924.

42977730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716266 + ... + 716325.

It is an arithmetic number, because the mean of its divisors is an integer number (6446664).

Almost surely, 2^42977730 is an apocalyptic number.

42977730 is an abundant number, since it is smaller than the sum of its proper divisors (60168894).

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

42977730 is a wasteful number, since it uses less digits than its factorization.

42977730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432601.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 42977730 is about 6555.7402328036. The cubic root of 42977730 is about 350.2793144512.

The spelling of 42977730 in words is "forty-two million, nine hundred seventy-seven thousand, seven hundred thirty".