421357995 has 12 divisors (see below), whose sum is σ = 730353936. Its totient is φ = 224724240.

The previous prime is 421357973. The next prime is 421357997. The reversal of 421357995 is 599753124.

It is a happy number.

It is not a de Polignac number, because 421357995 - 2⁶ = 421357931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 9363511 = 421357995 / (4 + 2 + 1 + 3 + 5 + 7 + 9 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 421357995.

It is not an unprimeable number, because it can be changed into a prime (421357997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4681711 + ... + 4681800.

It is an arithmetic number, because the mean of its divisors is an integer number (60862828).

Almost surely, 2^421357995 is an apocalyptic number.

421357995 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

421357995 is a deficient number, since it is larger than the sum of its proper divisors (308995941).

421357995 is a wasteful number, since it uses less digits than its factorization.

421357995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9363522 (or 9363519 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 421357995 is about 20527.0064792702. The cubic root of 421357995 is about 749.6935014286.

The spelling of 421357995 in words is "four hundred twenty-one million, three hundred fifty-seven thousand, nine hundred ninety-five".