76452381 has 12 divisors (see below), whose sum is σ = 114239580. Its totient is φ = 49210560.

The previous prime is 76452361. The next prime is 76452401. The reversal of 76452381 is 18325467.

76452381 is a `hidden beast` number, since 7 + 645 + 2 + 3 + 8 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (76452361) and next prime (76452401).

It can be written as a sum of positive squares in 2 ways, for example, as 57608100 + 18844281 = 7590^2 + 4341^2 .

It is not a de Polignac number, because 76452381 - 2⁶ = 76452317 is a prime.

It is a super-2 number, since 2×76452381² = 11689933121138322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76452361) 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, 146200 + ... + 146721.

It is an arithmetic number, because the mean of its divisors is an integer number (9519965).

Almost surely, 2^76452381 is an apocalyptic number.

It is an amenable number.

76452381 is a deficient number, since it is larger than the sum of its proper divisors (37787199).

76452381 is a wasteful number, since it uses less digits than its factorization.

76452381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292956 (or 292953 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 76452381 is about 8743.7052214722. The cubic root of 76452381 is about 424.4211376515.

The spelling of 76452381 in words is "seventy-six million, four hundred fifty-two thousand, three hundred eighty-one".