421634524 has 6 divisors (see below), whose sum is σ = 737860424. Its totient is φ = 210817260.

The previous prime is 421634513. The next prime is 421634533. The reversal of 421634524 is 425436124.

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 as a sum of consecutive naturals, namely, 52704312 + ... + 52704319.

Almost surely, 2^421634524 is an apocalyptic number.

It is an amenable number.

421634524 is a deficient number, since it is larger than the sum of its proper divisors (316225900).

421634524 is a wasteful number, since it uses less digits than its factorization.

421634524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105408635 (or 105408633 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 421634524 is about 20533.7411106695. The cubic root of 421634524 is about 749.8574686185.

The spelling of 421634524 in words is "four hundred twenty-one million, six hundred thirty-four thousand, five hundred twenty-four".