75998140 has 24 divisors (see below), whose sum is σ = 159949440. Its totient is φ = 30331968.

The previous prime is 75998123. The next prime is 75998213. The reversal of 75998140 is 4189957.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5614 + ... + 13546.

It is an arithmetic number, because the mean of its divisors is an integer number (6664560).

Almost surely, 2^75998140 is an apocalyptic number.

It is an amenable number.

75998140 is an abundant number, since it is smaller than the sum of its proper divisors (83951300).

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

75998140 is a wasteful number, since it uses less digits than its factorization.

75998140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8421 (or 8419 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 75998140 is about 8717.6912081124. The cubic root of 75998140 is about 423.5789028570.

The spelling of 75998140 in words is "seventy-five million, nine hundred ninety-eight thousand, one hundred forty".