420153822 has 24 divisors (see below), whose sum is σ = 993091320. Its totient is φ = 127319280.

The previous prime is 420153779. The next prime is 420153863. The reversal of 420153822 is 228351024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1060797 + ... + 1061192.

It is an arithmetic number, because the mean of its divisors is an integer number (41378805).

Almost surely, 2^420153822 is an apocalyptic number.

420153822 is an abundant number, since it is smaller than the sum of its proper divisors (572937498).

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

420153822 is a wasteful number, since it uses less digits than its factorization.

420153822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122008 (or 2122005 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 420153822 is about 20497.6540608919. The cubic root of 420153822 is about 748.9786524302.

The spelling of 420153822 in words is "four hundred twenty million, one hundred fifty-three thousand, eight hundred twenty-two".