400313030 has 16 divisors (see below), whose sum is σ = 775991664. Its totient is φ = 147807840.

The previous prime is 400313029. The next prime is 400313051. The reversal of 400313030 is 30313004.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400312996 and 400313014.

It is a congruent number.

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, 1539536 + ... + 1539795.

It is an arithmetic number, because the mean of its divisors is an integer number (48499479).

Almost surely, 2^400313030 is an apocalyptic number.

400313030 is a deficient number, since it is larger than the sum of its proper divisors (375678634).

400313030 is a wasteful number, since it uses less digits than its factorization.

400313030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079351.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 400313030 is about 20007.8242195397. The cubic root of 400313030 is about 736.9984516757.

Adding to 400313030 its reverse (30313004), we get a palindrome (430626034).

The spelling of 400313030 in words is "four hundred million, three hundred thirteen thousand, thirty".