494572428 has 36 divisors (see below), whose sum is σ = 1428765520. Its totient is φ = 141306336.

The previous prime is 494572423. The next prime is 494572447. The reversal of 494572428 is 824275494.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (494572423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 981043 + ... + 981546.

Almost surely, 2^494572428 is an apocalyptic number.

It is an amenable number.

494572428 is an abundant number, since it is smaller than the sum of its proper divisors (934193092).

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

494572428 is a wasteful number, since it uses less digits than its factorization.

494572428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962606 (or 1962601 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 494572428 is about 22238.9844192580. The cubic root of 494572428 is about 790.8181600213.

The spelling of 494572428 in words is "four hundred ninety-four million, five hundred seventy-two thousand, four hundred twenty-eight".