974149540 has 96 divisors (see below), whose sum is σ = 2565561600. Its totient is φ = 302455296.

The previous prime is 974149523. The next prime is 974149541. The reversal of 974149540 is 45941479.

It is not an unprimeable number, because it can be changed into a prime (974149541) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 91411 + ... + 101509.

It is an arithmetic number, because the mean of its divisors is an integer number (26724600).

Almost surely, 2^974149540 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 974149540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282780800).

974149540 is an abundant number, since it is smaller than the sum of its proper divisors (1591412060).

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

974149540 is a wasteful number, since it uses less digits than its factorization.

974149540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10181 (or 10179 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 974149540 is about 31211.3687620393. The cubic root of 974149540 is about 991.3078453554.

The spelling of 974149540 in words is "nine hundred seventy-four million, one hundred forty-nine thousand, five hundred forty".