421492855 has 12 divisors (see below), whose sum is σ = 588369960. Its totient is φ = 289023504.

The previous prime is 421492847. The next prime is 421492889. The reversal of 421492855 is 558294124.

It is a happy number.

It is not a de Polignac number, because 421492855 - 2³ = 421492847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 859945 + ... + 860434.

It is an arithmetic number, because the mean of its divisors is an integer number (49030830).

Almost surely, 2^421492855 is an apocalyptic number.

421492855 is a deficient number, since it is larger than the sum of its proper divisors (166877105).

421492855 is a wasteful number, since it uses less digits than its factorization.

421492855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720398 (or 1720391 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 421492855 is about 20530.2911572145. The cubic root of 421492855 is about 749.7734752927.

The spelling of 421492855 in words is "four hundred twenty-one million, four hundred ninety-two thousand, eight hundred fifty-five".