474157643 has 4 divisors (see below), whose sum is σ = 474201288. Its totient is φ = 474114000.

The previous prime is 474157639. The next prime is 474157681. The reversal of 474157643 is 346751474.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 474157643 - 2² = 474157639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 474157643.

It is not an unprimeable number, because it can be changed into a prime (474157043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8768 + ... + 32018.

It is an arithmetic number, because the mean of its divisors is an integer number (118550322).

Almost surely, 2^474157643 is an apocalyptic number.

474157643 is a deficient number, since it is larger than the sum of its proper divisors (43645).

474157643 is a wasteful number, since it uses less digits than its factorization.

474157643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43644.

The product of its digits is 282240, while the sum is 41.

The square root of 474157643 is about 21775.1611475093. The cubic root of 474157643 is about 779.7838777731.

The spelling of 474157643 in words is "four hundred seventy-four million, one hundred fifty-seven thousand, six hundred forty-three".