400613429 has 4 divisors (see below), whose sum is σ = 403495680. Its totient is φ = 397731180.

The previous prime is 400613417. The next prime is 400613431. The reversal of 400613429 is 924316004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400613429 - 2¹⁶ = 400547893 is a prime.

It is a super-2 number, since 2×400613429² = 320982238990276082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400613729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440917 + ... + 1441194.

It is an arithmetic number, because the mean of its divisors is an integer number (100873920).

Almost surely, 2^400613429 is an apocalyptic number.

It is an amenable number.

400613429 is a deficient number, since it is larger than the sum of its proper divisors (2882251).

400613429 is a wasteful number, since it uses less digits than its factorization.

400613429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882250.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 400613429 is about 20015.3298498926. The cubic root of 400613429 is about 737.1827559790.

The spelling of 400613429 in words is "four hundred million, six hundred thirteen thousand, four hundred twenty-nine".