400752799 has 2 divisors, whose sum is σ = 400752800. Its totient is φ = 400752798.

The previous prime is 400752791. The next prime is 400752817. The reversal of 400752799 is 997257004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400752799 - 2³ = 400752791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400752791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200376399 + 200376400.

It is an arithmetic number, because the mean of its divisors is an integer number (200376400).

Almost surely, 2^400752799 is an apocalyptic number.

400752799 is a deficient number, since it is larger than the sum of its proper divisors (1).

400752799 is an equidigital number, since it uses as much as digits as its factorization.

400752799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 400752799 is about 20018.8111285361. The cubic root of 400752799 is about 737.2682326017.

The spelling of 400752799 in words is "four hundred million, seven hundred fifty-two thousand, seven hundred ninety-nine".