400336677 has 24 divisors (see below), whose sum is σ = 644225400. Its totient is φ = 237863808.

The previous prime is 400336667. The next prime is 400336693. The reversal of 400336677 is 776633004.

It can be written as a sum of positive squares in 4 ways, for example, as 6155361 + 394181316 = 2481^2 + 19854^2 .

It is not a de Polignac number, because 400336677 - 2⁴ = 400336661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400336637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55602 + ... + 62387.

It is an arithmetic number, because the mean of its divisors is an integer number (26842725).

Almost surely, 2^400336677 is an apocalyptic number.

It is an amenable number.

400336677 is a deficient number, since it is larger than the sum of its proper divisors (243888723).

400336677 is a wasteful number, since it uses less digits than its factorization.

400336677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118037 (or 118034 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 400336677 is about 20008.4151546293. The cubic root of 400336677 is about 737.0129632020.

The spelling of 400336677 in words is "four hundred million, three hundred thirty-six thousand, six hundred seventy-seven".