422401012 has 24 divisors (see below), whose sum is σ = 809004672. Its totient is φ = 191380800.

The previous prime is 422400977. The next prime is 422401013. The reversal of 422401012 is 210104224.

It is a super-2 number, since 2×422401012² = 356845229877248288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422401013) 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, 1564 + ... + 29107.

It is an arithmetic number, because the mean of its divisors is an integer number (33708528).

Almost surely, 2^422401012 is an apocalyptic number.

It is an amenable number.

422401012 is a deficient number, since it is larger than the sum of its proper divisors (386603660).

422401012 is a wasteful number, since it uses less digits than its factorization.

422401012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30999 (or 30997 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 422401012 is about 20552.3967458786. The cubic root of 422401012 is about 750.3115813530.

Adding to 422401012 its reverse (210104224), we get a palindrome (632505236).

The spelling of 422401012 in words is "four hundred twenty-two million, four hundred one thousand, twelve".