400113250 has 32 divisors (see below), whose sum is σ = 750207744. Its totient is φ = 159790000.

The previous prime is 400113239. The next prime is 400113257. The reversal of 400113250 is 52311004.

It is a super-2 number, since 2×400113250² = 320181225651125000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400113257) 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 15 ways as a sum of consecutive naturals, for example, 275025 + ... + 276475.

It is an arithmetic number, because the mean of its divisors is an integer number (23443992).

Almost surely, 2^400113250 is an apocalyptic number.

400113250 is a deficient number, since it is larger than the sum of its proper divisors (350094494).

400113250 is a wasteful number, since it uses less digits than its factorization.

400113250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 400113250 is about 20002.8310496289. The cubic root of 400113250 is about 736.8758292612.

Adding to 400113250 its reverse (52311004), we get a palindrome (452424254).

The spelling of 400113250 in words is "four hundred million, one hundred thirteen thousand, two hundred fifty".