993057540 has 48 divisors (see below), whose sum is σ = 2799000960. Its totient is φ = 263059200.

The previous prime is 993057511. The next prime is 993057551. The reversal of 993057540 is 45750399.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 993057492 and 993057501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45745 + ... + 63864.

It is an arithmetic number, because the mean of its divisors is an integer number (58312520).

Almost surely, 2^993057540 is an apocalyptic number.

It is an amenable number.

993057540 is an abundant number, since it is smaller than the sum of its proper divisors (1805943420).

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

993057540 is a wasteful number, since it uses less digits than its factorization.

993057540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109772 (or 109770 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 993057540 is about 31512.8154883057. The cubic root of 993057540 is about 997.6804706099.

The spelling of 993057540 in words is "nine hundred ninety-three million, fifty-seven thousand, five hundred forty".