1653954738 has 16 divisors (see below), whose sum is σ = 3421975680. Its totient is φ = 532307216.

The previous prime is 1653954737. The next prime is 1653954751. The reversal of 1653954738 is 8374593561.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1653954733) 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, 4752570 + ... + 4752917.

It is an arithmetic number, because the mean of its divisors is an integer number (213873480).

Almost surely, 2^1653954738 is an apocalyptic number.

1653954738 is an abundant number, since it is smaller than the sum of its proper divisors (1768020942).

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

1653954738 is a wasteful number, since it uses less digits than its factorization.

1653954738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9505521.

The product of its digits is 2721600, while the sum is 51.

The square root of 1653954738 is about 40668.8423489039. The cubic root of 1653954738 is about 1182.6090736665.

The spelling of 1653954738 in words is "one billion, six hundred fifty-three million, nine hundred fifty-four thousand, seven hundred thirty-eight".