42974568 has 144 divisors (see below), whose sum is σ = 145962180. Its totient is φ = 11321856.

The previous prime is 42974543. The next prime is 42974593. The reversal of 42974568 is 86547924.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42974543) and next prime (42974593).

It can be written as a sum of positive squares in 2 ways, for example, as 34082244 + 8892324 = 5838^2 + 2982^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45396 + ... + 46332.

Almost surely, 2^42974568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42974568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72981090).

42974568 is an abundant number, since it is smaller than the sum of its proper divisors (102987612).

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

42974568 is a wasteful number, since it uses less digits than its factorization.

42974568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 962 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 42974568 is about 6555.4990656700. The cubic root of 42974568 is about 350.2707238753.

The spelling of 42974568 in words is "forty-two million, nine hundred seventy-four thousand, five hundred sixty-eight".