424571994 has 48 divisors (see below), whose sum is σ = 1146899520. Its totient is φ = 110278080.

The previous prime is 424571963. The next prime is 424572011. The reversal of 424571994 is 499175424.

424571994 is a `hidden beast` number, since 4 + 2 + 457 + 199 + 4 = 666.

It is a super-2 number, since 2×424571994² = 360522756178272072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151779 + ... + 154550.

It is an arithmetic number, because the mean of its divisors is an integer number (23893740).

Almost surely, 2^424571994 is an apocalyptic number.

424571994 is an abundant number, since it is smaller than the sum of its proper divisors (722327526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424571994 is a wasteful number, since it uses less digits than its factorization.

424571994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306355 (or 306352 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 424571994 is about 20605.1448429755. The cubic root of 424571994 is about 751.5948249740.

The spelling of 424571994 in words is "four hundred twenty-four million, five hundred seventy-one thousand, nine hundred ninety-four".