381366396 has 36 divisors (see below), whose sum is σ = 964763800. Its totient is φ = 127022688.

The previous prime is 381366367. The next prime is 381366397. The reversal of 381366396 is 693663183.

381366396 is a `hidden beast` number, since 3 + 8 + 1 + 3 + 6 + 639 + 6 = 666.

381366396 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

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

381366396 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381366397) 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, 53490 + ... + 60198.

Almost surely, 2^381366396 is an apocalyptic number.

381366396 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

381366396 is an abundant number, since it is smaller than the sum of its proper divisors (583397404).

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

381366396 is a wasteful number, since it uses less digits than its factorization.

381366396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8298 (or 8293 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 381366396 is about 19528.6045584420. The cubic root of 381366396 is about 725.1827654962.

The spelling of 381366396 in words is "three hundred eighty-one million, three hundred sixty-six thousand, three hundred ninety-six".