371407681 has 8 divisors (see below), whose sum is σ = 374472000. Its totient is φ = 368351280.

The previous prime is 371407651. The next prime is 371407691. The reversal of 371407681 is 186704173.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 371407681 - 2¹³ = 371399489 is a prime.

It is a super-2 number, since 2×371407681² = 275887331011595522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 371407681.

It is not an unprimeable number, because it can be changed into a prime (371407601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123526 + ... + 126496.

It is an arithmetic number, because the mean of its divisors is an integer number (46809000).

Almost surely, 2^371407681 is an apocalyptic number.

It is an amenable number.

371407681 is a deficient number, since it is larger than the sum of its proper divisors (3064319).

371407681 is a wasteful number, since it uses less digits than its factorization.

371407681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 371407681 is about 19271.9402500112. The cubic root of 371407681 is about 718.8147171367.

The spelling of 371407681 in words is "three hundred seventy-one million, four hundred seven thousand, six hundred eighty-one".