3644523146 has 12 divisors (see below), whose sum is σ = 6008945586. Its totient is φ = 1656601320.

The previous prime is 3644523137. The next prime is 3644523173. The reversal of 3644523146 is 6413254463.

It can be written as a sum of positive squares in only one way, i.e., 2554797025 + 1089726121 = 50545^2 + 33011^2 .

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, 7529765 + ... + 7530248.

Almost surely, 2^3644523146 is an apocalyptic number.

3644523146 is a deficient number, since it is larger than the sum of its proper divisors (2364422440).

3644523146 is a wasteful number, since it uses less digits than its factorization.

3644523146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15060037 (or 15060026 counting only the distinct ones).

The product of its digits is 207360, while the sum is 38.

The square root of 3644523146 is about 60369.8860856967. The cubic root of 3644523146 is about 1538.9112372410.

The spelling of 3644523146 in words is "three billion, six hundred forty-four million, five hundred twenty-three thousand, one hundred forty-six".