420022372 has 48 divisors (see below), whose sum is σ = 941205888. Its totient is φ = 159217920.

The previous prime is 420022367. The next prime is 420022373. The reversal of 420022372 is 273220024.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (420022373) 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, 7033 + ... + 29824.

It is an arithmetic number, because the mean of its divisors is an integer number (19608456).

Almost surely, 2^420022372 is an apocalyptic number.

It is an amenable number.

420022372 is an abundant number, since it is smaller than the sum of its proper divisors (521183516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420022372 is a wasteful number, since it uses less digits than its factorization.

420022372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36916 (or 36914 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 420022372 is about 20494.4473455617. The cubic root of 420022372 is about 748.9005353947.

Adding to 420022372 its reverse (273220024), we get a palindrome (693242396).

The spelling of 420022372 in words is "four hundred twenty million, twenty-two thousand, three hundred seventy-two".