1640053914 has 32 divisors (see below), whose sum is σ = 3300321024. Its totient is φ = 543325440.

The previous prime is 1640053873. The next prime is 1640053931. The reversal of 1640053914 is 4193500461.

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, 1331679 + ... + 1332909.

It is an arithmetic number, because the mean of its divisors is an integer number (103135032).

Almost surely, 2^1640053914 is an apocalyptic number.

1640053914 is an abundant number, since it is smaller than the sum of its proper divisors (1660267110).

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

1640053914 is a wasteful number, since it uses less digits than its factorization.

1640053914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1640053914 is about 40497.5791128309. The cubic root of 1640053914 is about 1179.2866304872.

The spelling of 1640053914 in words is "one billion, six hundred forty million, fifty-three thousand, nine hundred fourteen".