494721072 has 30 divisors (see below), whose sum is σ = 1384532292. Its totient is φ = 164906976.

The previous prime is 494721061. The next prime is 494721103. The reversal of 494721072 is 270127494.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1717638 + ... + 1717925.

Almost surely, 2^494721072 is an apocalyptic number.

It is an amenable number.

494721072 is an abundant number, since it is smaller than the sum of its proper divisors (889811220).

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

494721072 is a wasteful number, since it uses less digits than its factorization.

494721072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435577 (or 3435568 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 494721072 is about 22242.3261373445. The cubic root of 494721072 is about 790.8973790216.

The spelling of 494721072 in words is "four hundred ninety-four million, seven hundred twenty-one thousand, seventy-two".