974384640 has 400 divisors, whose sum is σ = 3612483072. Its totient is φ = 250822656.

The previous prime is 974384629. The next prime is 974384651. The reversal of 974384640 is 46483479.

It is an interprime number because it is at equal distance from previous prime (974384629) and next prime (974384651).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 7672257 + ... + 7672383.

Almost surely, 2^974384640 is an apocalyptic number.

974384640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 974384640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1806241536).

974384640 is an abundant number, since it is smaller than the sum of its proper divisors (2638098432).

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

974384640 is a wasteful number, since it uses less digits than its factorization.

974384640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 974384640 is about 31215.1347906749. The cubic root of 974384640 is about 991.3875859287.

The spelling of 974384640 in words is "nine hundred seventy-four million, three hundred eighty-four thousand, six hundred forty".