978242574 has 32 divisors (see below), whose sum is σ = 1969873920. Its totient is φ = 323857152.

The previous prime is 978242563. The next prime is 978242579. The reversal of 978242574 is 475242879.

978242574 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×978242574² = 1913917067172290952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978242579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052542 + ... + 1053470.

It is an arithmetic number, because the mean of its divisors is an integer number (61558560).

Almost surely, 2^978242574 is an apocalyptic number.

978242574 is an abundant number, since it is smaller than the sum of its proper divisors (991631346).

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

978242574 is a wasteful number, since it uses less digits than its factorization.

978242574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944.

The product of its digits is 1128960, while the sum is 48.

The square root of 978242574 is about 31276.8696323657. The cubic root of 978242574 is about 992.6942811156.

The spelling of 978242574 in words is "nine hundred seventy-eight million, two hundred forty-two thousand, five hundred seventy-four".