376538981 has 12 divisors (see below), whose sum is σ = 471708972. Its totient is φ = 297920448.

The previous prime is 376538881. The next prime is 376539011. The reversal of 376538981 is 189835673.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 147501025 + 229037956 = 12145^2 + 15134^2 .

It is not a de Polignac number, because 376538981 - 2¹⁸ = 376276837 is a prime.

It is a super-2 number, since 2×376538981² = 283563208425036722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (376538881) 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, 294920 + ... + 296193.

It is an arithmetic number, because the mean of its divisors is an integer number (39309081).

Almost surely, 2^376538981 is an apocalyptic number.

It is an amenable number.

376538981 is a deficient number, since it is larger than the sum of its proper divisors (95169991).

376538981 is a wasteful number, since it uses less digits than its factorization.

376538981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591140 (or 591133 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 376538981 is about 19404.6123640747. The cubic root of 376538981 is about 722.1099252523.

The spelling of 376538981 in words is "three hundred seventy-six million, five hundred thirty-eight thousand, nine hundred eighty-one".