421402260 has 24 divisors (see below), whose sum is σ = 1179926496. Its totient is φ = 112373920.

The previous prime is 421402243. The next prime is 421402271. The reversal of 421402260 is 62204124.

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 in 7 ways as a sum of consecutive naturals, for example, 3511626 + ... + 3511745.

It is an arithmetic number, because the mean of its divisors is an integer number (49163604).

Almost surely, 2^421402260 is an apocalyptic number.

It is an amenable number.

421402260 is an abundant number, since it is smaller than the sum of its proper divisors (758524236).

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

421402260 is a wasteful number, since it uses less digits than its factorization.

421402260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7023383 (or 7023381 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 421402260 is about 20528.0846646734. The cubic root of 421402260 is about 749.7197530730.

Adding to 421402260 its reverse (62204124), we get a palindrome (483606384).

The spelling of 421402260 in words is "four hundred twenty-one million, four hundred two thousand, two hundred sixty".