421474356 has 36 divisors (see below), whose sum is σ = 1111717152. Its totient is φ = 134382864.

The previous prime is 421474327. The next prime is 421474373. The reversal of 421474356 is 653474124.

421474356 is a `hidden beast` number, since 4 + 214 + 7 + 435 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×421474356² = 355281265531229472, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 421474356.

It is a congruent number.

It is an unprimeable number.

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, 253686 + ... + 255341.

It is an arithmetic number, because the mean of its divisors is an integer number (30881032).

Almost surely, 2^421474356 is an apocalyptic number.

421474356 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

421474356 is an abundant number, since it is smaller than the sum of its proper divisors (690242796).

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

421474356 is a wasteful number, since it uses less digits than its factorization.

421474356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509060 (or 509055 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 421474356 is about 20529.8406228592. The cubic root of 421474356 is about 749.7625061368.

The spelling of 421474356 in words is "four hundred twenty-one million, four hundred seventy-four thousand, three hundred fifty-six".