421054404 has 48 divisors (see below), whose sum is σ = 992553408. Its totient is φ = 138918528.

The previous prime is 421054373. The next prime is 421054423. The reversal of 421054404 is 404450124.

421054404 = T₂₅₇ + T₂₅₈ + ... + T₁₃₆₄.

It is a happy number.

It is a super-2 number, since 2×421054404² = 354573622255590432, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 654507 + ... + 655149.

It is an arithmetic number, because the mean of its divisors is an integer number (20678196).

Almost surely, 2^421054404 is an apocalyptic number.

It is an amenable number.

421054404 is an abundant number, since it is smaller than the sum of its proper divisors (571499004).

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

421054404 is a wasteful number, since it uses less digits than its factorization.

421054404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 421054404 is about 20519.6102302164. The cubic root of 421054404 is about 749.5134052579.

The spelling of 421054404 in words is "four hundred twenty-one million, fifty-four thousand, four hundred four".