400700667 has 16 divisors (see below), whose sum is σ = 549521280. Its totient is φ = 259560000.

The previous prime is 400700653. The next prime is 400700689. The reversal of 400700667 is 766007004.

It is not a de Polignac number, because 400700667 - 2¹⁵ = 400667899 is a prime.

It is a super-2 number, since 2×400700667² = 321122049068489778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400700467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24384 + ... + 37362.

It is an arithmetic number, because the mean of its divisors is an integer number (34345080).

Almost surely, 2^400700667 is an apocalyptic number.

400700667 is a deficient number, since it is larger than the sum of its proper divisors (148820613).

400700667 is a wasteful number, since it uses less digits than its factorization.

400700667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13274.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 400700667 is about 20017.5090108635. The cubic root of 400700667 is about 737.2362619918.

The spelling of 400700667 in words is "four hundred million, seven hundred thousand, six hundred sixty-seven".