421142526 has 48 divisors (see below), whose sum is σ = 1045699200. Its totient is φ = 119995344.

The previous prime is 421142509. The next prime is 421142539. The reversal of 421142526 is 625241124.

421142526 is a `hidden beast` number, since 4 + 211 + 425 + 26 = 666.

It is a super-2 number, since 2×421142526² = 354722054411321352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421142526.

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, 43345 + ... + 52163.

It is an arithmetic number, because the mean of its divisors is an integer number (21785400).

Almost surely, 2^421142526 is an apocalyptic number.

421142526 is an abundant number, since it is smaller than the sum of its proper divisors (624556674).

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

421142526 is a wasteful number, since it uses less digits than its factorization.

421142526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9213 (or 9210 counting only the distinct ones).

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

The square root of 421142526 is about 20521.7573808872. The cubic root of 421142526 is about 749.5656898815.

The spelling of 421142526 in words is "four hundred twenty-one million, one hundred forty-two thousand, five hundred twenty-six".