3564989940 has 48 divisors (see below), whose sum is σ = 9986703552. Its totient is φ = 950213376.

The previous prime is 3564989929. The next prime is 3564989951. The reversal of 3564989940 is 499894653.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3564989929) and next prime (3564989951).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124887 + ... + 150753.

It is an arithmetic number, because the mean of its divisors is an integer number (208056324).

Almost surely, 2^3564989940 is an apocalyptic number.

3564989940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3564989940 is an abundant number, since it is smaller than the sum of its proper divisors (6421713612).

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

3564989940 is a wasteful number, since it uses less digits than its factorization.

3564989940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28176 (or 28174 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 57.

The square root of 3564989940 is about 59707.5367102010. The cubic root of 3564989940 is about 1527.6344237719.

The spelling of 3564989940 in words is "three billion, five hundred sixty-four million, nine hundred eighty-nine thousand, nine hundred forty".