361993788 has 36 divisors (see below), whose sum is σ = 985428808. Its totient is φ = 111382560.

The previous prime is 361993781. The next prime is 361993843. The reversal of 361993788 is 887399163.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361993781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 386278 + ... + 387213.

Almost surely, 2^361993788 is an apocalyptic number.

It is an amenable number.

361993788 is an abundant number, since it is smaller than the sum of its proper divisors (623435020).

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

361993788 is a wasteful number, since it uses less digits than its factorization.

361993788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773514 (or 773509 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 361993788 is about 19026.1343420044. The cubic root of 361993788 is about 712.6895200370.

The spelling of 361993788 in words is "three hundred sixty-one million, nine hundred ninety-three thousand, seven hundred eighty-eight".