313623378 has 36 divisors (see below), whose sum is σ = 721852170. Its totient is φ = 98390016.

The previous prime is 313623353. The next prime is 313623379. The reversal of 313623378 is 873326313.

It is a happy number.

313623378 is a `hidden beast` number, since 313 + 6 + 2 + 337 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 253669329 + 59954049 = 15927^2 + 7743^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313623379) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24943 + ... + 35346.

Almost surely, 2^313623378 is an apocalyptic number.

313623378 is an abundant number, since it is smaller than the sum of its proper divisors (408228792).

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

313623378 is a wasteful number, since it uses less digits than its factorization.

313623378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60331 (or 60311 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 313623378 is about 17709.4149536341. The cubic root of 313623378 is about 679.4165829243.

The spelling of 313623378 in words is "three hundred thirteen million, six hundred twenty-three thousand, three hundred seventy-eight".