3572655640 has 32 divisors (see below), whose sum is σ = 8052604560. Its totient is φ = 1426550400.

The previous prime is 3572655607. The next prime is 3572655643. The reversal of 3572655640 is 465562753.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3572655643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55371 + ... + 101050.

Almost surely, 2^3572655640 is an apocalyptic number.

It is an amenable number.

3572655640 is an abundant number, since it is smaller than the sum of its proper divisors (4479948920).

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

3572655640 is a wasteful number, since it uses less digits than its factorization.

3572655640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157003 (or 156999 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 43.

The square root of 3572655640 is about 59771.6959772767. The cubic root of 3572655640 is about 1528.7285833538.

The spelling of 3572655640 in words is "three billion, five hundred seventy-two million, six hundred fifty-five thousand, six hundred forty".