381005496 has 48 divisors (see below), whose sum is σ = 1092592800. Its totient is φ = 119530752.

The previous prime is 381005477. The next prime is 381005507. The reversal of 381005496 is 694500183.

381005496 is a `hidden beast` number, since 3 + 8 + 100 + 549 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 381005496.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154416 + ... + 156863.

It is an arithmetic number, because the mean of its divisors is an integer number (22762350).

Almost surely, 2^381005496 is an apocalyptic number.

381005496 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

381005496 is an abundant number, since it is smaller than the sum of its proper divisors (711587304).

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

381005496 is a wasteful number, since it uses less digits than its factorization.

381005496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311308 (or 311301 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 381005496 is about 19519.3620797402. The cubic root of 381005496 is about 724.9539382547.

It can be divided in two parts, 381005 and 496, that added together give a triangular number (381501 = T₈₇₃).

The spelling of 381005496 in words is "three hundred eighty-one million, five thousand, four hundred ninety-six".