400313000 has 32 divisors (see below), whose sum is σ = 936734760. Its totient is φ = 160124800.

The previous prime is 400312967. The next prime is 400313029. The reversal of 400313000 is 313004.

It can be written as a sum of positive squares in 4 ways, for example, as 223263364 + 177049636 = 14942^2 + 13306^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199157 + ... + 201156.

Almost surely, 2^400313000 is an apocalyptic number.

400313000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400313000 is an abundant number, since it is smaller than the sum of its proper divisors (536421760).

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

400313000 is a wasteful number, since it uses less digits than its factorization.

400313000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400334 (or 400320 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 400313000 is about 20007.8234698330. The cubic root of 400313000 is about 736.9984332651.

Adding to 400313000 its reverse (313004), we get a palindrome (400626004).

The spelling of 400313000 in words is "four hundred million, three hundred thirteen thousand".