421115590 has 32 divisors (see below), whose sum is σ = 867179520. Its totient is φ = 144235104.

The previous prime is 421115587. The next prime is 421115593. The reversal of 421115590 is 95511124.

It is an interprime number because it is at equal distance from previous prime (421115587) and next prime (421115593).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421115593) 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, 83151 + ... + 88069.

It is an arithmetic number, because the mean of its divisors is an integer number (27099360).

Almost surely, 2^421115590 is an apocalyptic number.

421115590 is an abundant number, since it is smaller than the sum of its proper divisors (446063930).

421115590 is a wasteful number, since it uses less digits than its factorization.

421115590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6156.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 421115590 is about 20521.1010913157. The cubic root of 421115590 is about 749.5497089640.

The spelling of 421115590 in words is "four hundred twenty-one million, one hundred fifteen thousand, five hundred ninety".