420988522 has 8 divisors (see below), whose sum is σ = 631597572. Its totient is φ = 210456000.

The previous prime is 420988507. The next prime is 420988523. The reversal of 420988522 is 225889024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 316519681 + 104468841 = 17791^2 + 10221^2 .

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

It is not an unprimeable number, because it can be changed into a prime (420988523) 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, 2479 + ... + 29122.

Almost surely, 2^420988522 is an apocalyptic number.

420988522 is a deficient number, since it is larger than the sum of its proper divisors (210609050).

420988522 is a wasteful number, since it uses less digits than its factorization.

420988522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38264.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 420988522 is about 20518.0048250311. The cubic root of 420988522 is about 749.4743113250.

The spelling of 420988522 in words is "four hundred twenty million, nine hundred eighty-eight thousand, five hundred twenty-two".