400451413 has 12 divisors (see below), whose sum is σ = 420067648. Its totient is φ = 381716280.

The previous prime is 400451399. The next prime is 400451419. The reversal of 400451413 is 314154004.

It is not a de Polignac number, because 400451413 - 2¹⁷ = 400320341 is a prime.

It is a super-2 number, since 2×400451413² = 320722668347393138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400451419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173956 + ... + 176242.

Almost surely, 2^400451413 is an apocalyptic number.

It is an amenable number.

400451413 is a deficient number, since it is larger than the sum of its proper divisors (19616235).

400451413 is a wasteful number, since it uses less digits than its factorization.

400451413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664 (or 2641 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 400451413 is about 20011.2821428313. The cubic root of 400451413 is about 737.0833654801.

The spelling of 400451413 in words is "four hundred million, four hundred fifty-one thousand, four hundred thirteen".