381373536 has 48 divisors (see below), whose sum is σ = 1024398144. Its totient is φ = 124166784.

The previous prime is 381373523. The next prime is 381373537. The reversal of 381373536 is 635373183.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×381373536² = 290891547922286592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 381373494 and 381373503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381373537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42066 + ... + 50321.

It is an arithmetic number, because the mean of its divisors is an integer number (21341628).

Almost surely, 2^381373536 is an apocalyptic number.

It is an amenable number.

381373536 is an abundant number, since it is smaller than the sum of its proper divisors (643024608).

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

381373536 is a wasteful number, since it uses less digits than its factorization.

381373536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92443 (or 92435 counting only the distinct ones).

The product of its digits is 136080, while the sum is 39.

The square root of 381373536 is about 19528.7873663471. The cubic root of 381373536 is about 725.1872911289.

The spelling of 381373536 in words is "three hundred eighty-one million, three hundred seventy-three thousand, five hundred thirty-six".