3645507634 has 16 divisors (see below), whose sum is σ = 5525537472. Its totient is φ = 1803688848.

The previous prime is 3645507581. The next prime is 3645507643. The reversal of 3645507634 is 4367055463.

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, 299532 + ... + 311464.

It is an arithmetic number, because the mean of its divisors is an integer number (345346092).

Almost surely, 2^3645507634 is an apocalyptic number.

3645507634 is a deficient number, since it is larger than the sum of its proper divisors (1880029838).

3645507634 is a wasteful number, since it uses less digits than its factorization.

3645507634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13521.

The product of its (nonzero) digits is 907200, while the sum is 43.

The square root of 3645507634 is about 60378.0393355067. The cubic root of 3645507634 is about 1539.0497924729.

The spelling of 3645507634 in words is "three billion, six hundred forty-five million, five hundred seven thousand, six hundred thirty-four".