421054432 has 12 divisors (see below), whose sum is σ = 828950976. Its totient is φ = 210527200.

The previous prime is 421054429. The next prime is 421054433. The reversal of 421054432 is 234450124.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 421054397 and 421054406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421054433) by changing a digit.

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 as a sum of consecutive naturals, namely, 6578944 + ... + 6579007.

It is an arithmetic number, because the mean of its divisors is an integer number (69079248).

Almost surely, 2^421054432 is an apocalyptic number.

It is an amenable number.

421054432 is a deficient number, since it is larger than the sum of its proper divisors (407896544).

421054432 is a wasteful number, since it uses less digits than its factorization.

421054432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13157961 (or 13157953 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 421054432 is about 20519.6109124905. The cubic root of 421054432 is about 749.5134218720.

The spelling of 421054432 in words is "four hundred twenty-one million, fifty-four thousand, four hundred thirty-two".