381268432 has 20 divisors (see below), whose sum is σ = 752647140. Its totient is φ = 187036928.

The previous prime is 381268429. The next prime is 381268453. The reversal of 381268432 is 234862183.

It can be written as a sum of positive squares in 2 ways, for example, as 246615616 + 134652816 = 15704^2 + 11604^2 .

It is a junction number, because it is equal to n+sod(n) for n = 381268391 and 381268400.

It is a congruent number.

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, 223957 + ... + 225652.

It is an arithmetic number, because the mean of its divisors is an integer number (37632357).

Almost surely, 2^381268432 is an apocalyptic number.

It is an amenable number.

381268432 is a deficient number, since it is larger than the sum of its proper divisors (371378708).

381268432 is a wasteful number, since it uses less digits than its factorization.

381268432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449670 (or 449664 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 381268432 is about 19526.0961792162. The cubic root of 381268432 is about 725.1206660830.

The spelling of 381268432 in words is "three hundred eighty-one million, two hundred sixty-eight thousand, four hundred thirty-two".