381254432 has 24 divisors (see below), whose sum is σ = 808333596. Its totient is φ = 175963392.

The previous prime is 381254407. The next prime is 381254479. The reversal of 381254432 is 234452183.

It can be written as a sum of positive squares in 2 ways, for example, as 379626256 + 1628176 = 19484^2 + 1276^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457823 + ... + 458654.

Almost surely, 2^381254432 is an apocalyptic number.

381254432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

381254432 is an abundant number, since it is smaller than the sum of its proper divisors (427079164).

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

381254432 is a wasteful number, since it uses less digits than its factorization.

381254432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916500 (or 916492 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 381254432 is about 19525.7376813272. The cubic root of 381254432 is about 725.1117906095. Note that the first 3 decimals are identical.

The spelling of 381254432 in words is "three hundred eighty-one million, two hundred fifty-four thousand, four hundred thirty-two".