400700007 has 8 divisors (see below), whose sum is σ = 593629680. Its totient is φ = 267133320.

The previous prime is 400699969. The next prime is 400700009. The reversal of 400700007 is 700007004.

It is not a de Polignac number, because 400700007 - 2¹⁶ = 400634471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400700009) 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, 7420344 + ... + 7420397.

It is an arithmetic number, because the mean of its divisors is an integer number (74203710).

Almost surely, 2^400700007 is an apocalyptic number.

400700007 is a deficient number, since it is larger than the sum of its proper divisors (192929673).

400700007 is a wasteful number, since it uses less digits than its factorization.

400700007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14840750 (or 14840744 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 400700007 is about 20017.4925252890. The cubic root of 400700007 is about 737.2358572206.

The spelling of 400700007 in words is "four hundred million, seven hundred thousand, seven".