1993915392 has 88 divisors (see below), whose sum is σ = 6073792896. Its totient is φ = 569683968.

The previous prime is 1993915349. The next prime is 1993915393. The reversal of 1993915392 is 2935193991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993915393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24858 + ... + 67865.

Almost surely, 2^1993915392 is an apocalyptic number.

1993915392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1993915392 is an abundant number, since it is smaller than the sum of its proper divisors (4079877504).

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

1993915392 is an equidigital number, since it uses as much as digits as its factorization.

1993915392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92753 (or 92735 counting only the distinct ones).

The product of its digits is 590490, while the sum is 51.

The square root of 1993915392 is about 44653.2797451654. The cubic root of 1993915392 is about 1258.6420643792.

The spelling of 1993915392 in words is "one billion, nine hundred ninety-three million, nine hundred fifteen thousand, three hundred ninety-two".