421499088 has 60 divisors (see below), whose sum is σ = 1249008228. Its totient is φ = 132234240.

The previous prime is 421499083. The next prime is 421499101. The reversal of 421499088 is 880994124.

It can be written as a sum of positive squares in 2 ways, for example, as 353139264 + 68359824 = 18792^2 + 8268^2 .

It is a super-2 number, since 2×421499088² = 355322962369663488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421499083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83643 + ... + 88538.

Almost surely, 2^421499088 is an apocalyptic number.

421499088 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

421499088 is an abundant number, since it is smaller than the sum of its proper divisors (827509140).

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

421499088 is a wasteful number, since it uses less digits than its factorization.

421499088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172212 (or 172203 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 421499088 is about 20530.4429567411. The cubic root of 421499088 is about 749.7771711363. Note that the first 3 decimals are identical.

The spelling of 421499088 in words is "four hundred twenty-one million, four hundred ninety-nine thousand, eighty-eight".