42973308 has 48 divisors (see below), whose sum is σ = 127330560. Its totient is φ = 12277872.

The previous prime is 42973291. The next prime is 42973313. The reversal of 42973308 is 80337924.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 27666 + ... + 29177.

It is an arithmetic number, because the mean of its divisors is an integer number (2652720).

Almost surely, 2^42973308 is an apocalyptic number.

It is an amenable number.

42973308 is an abundant number, since it is smaller than the sum of its proper divisors (84357252).

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

42973308 is a wasteful number, since it uses less digits than its factorization.

42973308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56863 (or 56855 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 42973308 is about 6555.4029624425. The cubic root of 42973308 is about 350.2673005682.

It can be divided in two parts, 429 and 73308, that added together give a palindrome (73737).

The spelling of 42973308 in words is "forty-two million, nine hundred seventy-three thousand, three hundred eight".