421166592 has 240 divisors, whose sum is σ = 1516724352. Its totient is φ = 109301760.

The previous prime is 421166587. The next prime is 421166611. The reversal of 421166592 is 295661124.

421166592 is a `hidden beast` number, since 4 + 2 + 1 + 1 + 66 + 592 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354223 + ... + 355409.

Almost surely, 2^421166592 is an apocalyptic number.

421166592 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421166592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758362176).

421166592 is an abundant number, since it is smaller than the sum of its proper divisors (1095557760).

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

421166592 is a wasteful number, since it uses less digits than its factorization.

421166592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1210 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 421166592 is about 20522.3437258029. The cubic root of 421166592 is about 749.5799674742.

The spelling of 421166592 in words is "four hundred twenty-one million, one hundred sixty-six thousand, five hundred ninety-two".