421031310 has 32 divisors (see below), whose sum is σ = 1154829312. Its totient is φ = 96235680.

The previous prime is 421031267. The next prime is 421031339. The reversal of 421031310 is 13130124.

It is a super-2 number, since 2×421031310² = 354534728000632200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 421031310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002246 + ... + 1002665.

It is an arithmetic number, because the mean of its divisors is an integer number (36088416).

Almost surely, 2^421031310 is an apocalyptic number.

421031310 is an abundant number, since it is smaller than the sum of its proper divisors (733798002).

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

421031310 is a wasteful number, since it uses less digits than its factorization.

421031310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004928.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 421031310 is about 20519.0474925129. The cubic root of 421031310 is about 749.4997018988.

Adding to 421031310 its reverse (13130124), we get a palindrome (434161434).

The spelling of 421031310 in words is "four hundred twenty-one million, thirty-one thousand, three hundred ten".