421002302 has 16 divisors (see below), whose sum is σ = 724875360. Its totient is φ = 179640288.

The previous prime is 421002259. The next prime is 421002313. The reversal of 421002302 is 203200124.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 62453 + ... + 68864.

It is an arithmetic number, because the mean of its divisors is an integer number (45304710).

Almost surely, 2^421002302 is an apocalyptic number.

421002302 is a deficient number, since it is larger than the sum of its proper divisors (303873058).

421002302 is a wasteful number, since it uses less digits than its factorization.

421002302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131555.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 421002302 is about 20518.3406249141. The cubic root of 421002302 is about 749.4824886211.

Adding to 421002302 its reverse (203200124), we get a palindrome (624202426).

The spelling of 421002302 in words is "four hundred twenty-one million, two thousand, three hundred two".