400674167 has 4 divisors (see below), whose sum is σ = 401490696. Its totient is φ = 399857640.

The previous prime is 400674161. The next prime is 400674187. The reversal of 400674167 is 761476004.

It is a happy number.

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 400674167 - 2¹⁴ = 400657783 is a prime.

It is a super-2 number, since 2×400674167² = 321079576202287778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400674161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407528 + ... + 408509.

It is an arithmetic number, because the mean of its divisors is an integer number (100372674).

Almost surely, 2^400674167 is an apocalyptic number.

400674167 is a deficient number, since it is larger than the sum of its proper divisors (816529).

400674167 is an equidigital number, since it uses as much as digits as its factorization.

400674167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816528.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 400674167 is about 20016.8470793979. The cubic root of 400674167 is about 737.2200094677.

The spelling of 400674167 in words is "four hundred million, six hundred seventy-four thousand, one hundred sixty-seven".