421352502 has 16 divisors (see below), whose sum is σ = 879344640. Its totient is φ = 134344232.

The previous prime is 421352473. The next prime is 421352539. The reversal of 421352502 is 205253124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1526502 + ... + 1526777.

It is an arithmetic number, because the mean of its divisors is an integer number (54959040).

Almost surely, 2^421352502 is an apocalyptic number.

421352502 is an abundant number, since it is smaller than the sum of its proper divisors (457992138).

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

421352502 is a wasteful number, since it uses less digits than its factorization.

421352502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053307.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 421352502 is about 20526.8726794902. The cubic root of 421352502 is about 749.6902436412.

The spelling of 421352502 in words is "four hundred twenty-one million, three hundred fifty-two thousand, five hundred two".