400719913 has 8 divisors (see below), whose sum is σ = 437440320. Its totient is φ = 364048080.

The previous prime is 400719889. The next prime is 400719923. The reversal of 400719913 is 319917004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400719913 - 2⁹ = 400719401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400719923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6343 + ... + 29011.

It is an arithmetic number, because the mean of its divisors is an integer number (54680040).

Almost surely, 2^400719913 is an apocalyptic number.

It is an amenable number.

400719913 is a deficient number, since it is larger than the sum of its proper divisors (36720407).

400719913 is a wasteful number, since it uses less digits than its factorization.

400719913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24287.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 400719913 is about 20017.9897342366. The cubic root of 400719913 is about 737.2480651681.

The spelling of 400719913 in words is "four hundred million, seven hundred nineteen thousand, nine hundred thirteen".