421157361 has 16 divisors (see below), whose sum is σ = 567902720. Its totient is φ = 277603200.

The previous prime is 421157329. The next prime is 421157369. The reversal of 421157361 is 163751124.

It is not a de Polignac number, because 421157361 - 2⁵ = 421157329 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421157369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195456 + ... + 197598.

It is an arithmetic number, because the mean of its divisors is an integer number (35493920).

Almost surely, 2^421157361 is an apocalyptic number.

It is an amenable number.

421157361 is a deficient number, since it is larger than the sum of its proper divisors (146745359).

421157361 is a wasteful number, since it uses less digits than its factorization.

421157361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856.

The product of its digits is 5040, while the sum is 30.

The square root of 421157361 is about 20522.1188233574. The cubic root of 421157361 is about 749.5744910796.

The spelling of 421157361 in words is "four hundred twenty-one million, one hundred fifty-seven thousand, three hundred sixty-one".