400414039 has 4 divisors (see below), whose sum is σ = 423967824. Its totient is φ = 376860256.

The previous prime is 400414019. The next prime is 400414051. The reversal of 400414039 is 930414004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400414039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400414019) 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, 11776867 + ... + 11776900.

It is an arithmetic number, because the mean of its divisors is an integer number (105991956).

Almost surely, 2^400414039 is an apocalyptic number.

400414039 is a deficient number, since it is larger than the sum of its proper divisors (23553785).

400414039 is a wasteful number, since it uses less digits than its factorization.

400414039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23553784.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 400414039 is about 20010.3482978183. The cubic root of 400414039 is about 737.0604341832.

The spelling of 400414039 in words is "four hundred million, four hundred fourteen thousand, thirty-nine".