42977724 has 24 divisors (see below), whose sum is σ = 101982720. Its totient is φ = 14082864.

The previous prime is 42977723. The next prime is 42977729. The reversal of 42977724 is 42777924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42977723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29644 + ... + 31059.

It is an arithmetic number, because the mean of its divisors is an integer number (4249280).

Almost surely, 2^42977724 is an apocalyptic number.

It is an amenable number.

42977724 is an abundant number, since it is smaller than the sum of its proper divisors (59004996).

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

42977724 is a wasteful number, since it uses less digits than its factorization.

42977724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60769 (or 60767 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 42977724 is about 6555.7397751894. The cubic root of 42977724 is about 350.2792981507.

It can be divided in two parts, 4297 and 7724, that added together give a palindrome (12021).

The spelling of 42977724 in words is "forty-two million, nine hundred seventy-seven thousand, seven hundred twenty-four".