3645073746 has 24 divisors (see below), whose sum is σ = 7997633280. Its totient is φ = 1199644056.

The previous prime is 3645073723. The next prime is 3645073769. The reversal of 3645073746 is 6473705463.

It is an interprime number because it is at equal distance from previous prime (3645073723) and next prime (3645073769).

It is a super-2 number, since 2×3645073746² = 26573125227556945032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1280250 + ... + 1283093.

It is an arithmetic number, because the mean of its divisors is an integer number (333234720).

Almost surely, 2^3645073746 is an apocalyptic number.

3645073746 is an abundant number, since it is smaller than the sum of its proper divisors (4352559534).

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

3645073746 is a wasteful number, since it uses less digits than its factorization.

3645073746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563430 (or 2563427 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 45.

The square root of 3645073746 is about 60374.4461341054. The cubic root of 3645073746 is about 1538.9887308597.

The spelling of 3645073746 in words is "three billion, six hundred forty-five million, seventy-three thousand, seven hundred forty-six".