3645642346 has 32 divisors (see below), whose sum is σ = 5793854976. Its totient is φ = 1717632000.

The previous prime is 3645642317. The next prime is 3645642349. The reversal of 3645642346 is 6432465463.

It is a happy number.

It is a super-2 number, since 2×3645642346² = 26581416229896767432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3645642349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1709701 + ... + 1711831.

It is an arithmetic number, because the mean of its divisors is an integer number (181057968).

Almost surely, 2^3645642346 is an apocalyptic number.

3645642346 is a deficient number, since it is larger than the sum of its proper divisors (2148212630).

3645642346 is a wasteful number, since it uses less digits than its factorization.

3645642346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878.

The product of its digits is 1244160, while the sum is 43.

The square root of 3645642346 is about 60379.1548963713. The cubic root of 3645642346 is about 1539.0687496793.

The spelling of 3645642346 in words is "three billion, six hundred forty-five million, six hundred forty-two thousand, three hundred forty-six".