424893157 has 6 divisors (see below), whose sum is σ = 457657298. Its totient is φ = 392140464.

The previous prime is 424893151. The next prime is 424893187. The reversal of 424893157 is 751398424.

It can be written as a sum of positive squares in 3 ways, for example, as 32615521 + 392277636 = 5711^2 + 19806^2 .

It is not a de Polignac number, because 424893157 - 2¹⁵ = 424860389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424893151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71463 + ... + 77179.

Almost surely, 2^424893157 is an apocalyptic number.

It is an amenable number.

424893157 is a deficient number, since it is larger than the sum of its proper divisors (32764141).

424893157 is an frugal number, since it uses more digits than its factorization.

424893157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11447 (or 5730 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 424893157 is about 20612.9366418276. The cubic root of 424893157 is about 751.7842891979.

The spelling of 424893157 in words is "four hundred twenty-four million, eight hundred ninety-three thousand, one hundred fifty-seven".