400625122 has 8 divisors (see below), whose sum is σ = 617179356. Its totient is φ = 194898672.

The previous prime is 400625119. The next prime is 400625123. The reversal of 400625122 is 221526004.

It can be written as a sum of positive squares in 2 ways, for example, as 396049801 + 4575321 = 19901^2 + 2139^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 400625093 and 400625102.

It is not an unprimeable number, because it can be changed into a prime (400625123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2706853 + ... + 2707000.

Almost surely, 2^400625122 is an apocalyptic number.

400625122 is a deficient number, since it is larger than the sum of its proper divisors (216554234).

400625122 is a wasteful number, since it uses less digits than its factorization.

400625122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413892.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 400625122 is about 20015.6219488678. The cubic root of 400625122 is about 737.1899281417.

The spelling of 400625122 in words is "four hundred million, six hundred twenty-five thousand, one hundred twenty-two".