421157475 has 60 divisors (see below), whose sum is σ = 805414720. Its totient is φ = 217339200.

The previous prime is 421157423. The next prime is 421157479. The reversal of 421157475 is 574751124.

421157475 is a `hidden beast` number, since 4 + 2 + 11 + 574 + 75 = 666.

It is not a de Polignac number, because 421157475 - 2¹² = 421153379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421157479) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 59421 + ... + 66129.

Almost surely, 2^421157475 is an apocalyptic number.

421157475 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

421157475 is a deficient number, since it is larger than the sum of its proper divisors (384257245).

421157475 is a wasteful number, since it uses less digits than its factorization.

421157475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762 (or 6748 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 421157475 is about 20522.1216008482. The cubic root of 421157475 is about 749.5745587119.

The spelling of 421157475 in words is "four hundred twenty-one million, one hundred fifty-seven thousand, four hundred seventy-five".