744686146 has 16 divisors (see below), whose sum is σ = 1138970808. Its totient is φ = 365040000.

The previous prime is 744686119. The next prime is 744686177. The reversal of 744686146 is 641686447.

It can be written as a sum of positive squares in 4 ways, for example, as 720331921 + 24354225 = 26839^2 + 4935^2 .

It is a junction number, because it is equal to n+sod(n) for n = 744686096 and 744686105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246646 + ... + 249646.

Almost surely, 2^744686146 is an apocalyptic number.

744686146 is a deficient number, since it is larger than the sum of its proper divisors (394284662).

744686146 is a wasteful number, since it uses less digits than its factorization.

744686146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5397.

The product of its digits is 774144, while the sum is 46.

The square root of 744686146 is about 27288.9381618267. The cubic root of 744686146 is about 906.4094501460.

The spelling of 744686146 in words is "seven hundred forty-four million, six hundred eighty-six thousand, one hundred forty-six".