421413718 has 12 divisors (see below), whose sum is σ = 694810620. Its totient is φ = 191551580.

The previous prime is 421413709. The next prime is 421413737. The reversal of 421413718 is 817314124.

It is a self number, because there is not a number n which added to its sum of digits gives 421413718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 870448 + ... + 870931.

It is an arithmetic number, because the mean of its divisors is an integer number (57900885).

Almost surely, 2^421413718 is an apocalyptic number.

421413718 is a deficient number, since it is larger than the sum of its proper divisors (273396902).

421413718 is a wasteful number, since it uses less digits than its factorization.

421413718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741403 (or 1741392 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 421413718 is about 20528.3637438545. The cubic root of 421413718 is about 749.7265480145.

The spelling of 421413718 in words is "four hundred twenty-one million, four hundred thirteen thousand, seven hundred eighteen".