400883839 has 4 divisors (see below), whose sum is σ = 401941960. Its totient is φ = 399825720.

The previous prime is 400883803. The next prime is 400883843. The reversal of 400883839 is 938388004.

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

It is a cyclic number.

It is not a de Polignac number, because 400883839 - 2¹³ = 400875647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400883795 and 400883804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400883339) 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, 528492 + ... + 529249.

It is an arithmetic number, because the mean of its divisors is an integer number (100485490).

Almost surely, 2^400883839 is an apocalyptic number.

400883839 is a deficient number, since it is larger than the sum of its proper divisors (1058121).

400883839 is a wasteful number, since it uses less digits than its factorization.

400883839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058120.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 400883839 is about 20022.0837826636. The cubic root of 400883839 is about 737.3485823012.

The spelling of 400883839 in words is "four hundred million, eight hundred eighty-three thousand, eight hundred thirty-nine".