1653907492 has 12 divisors (see below), whose sum is σ = 3064593420. Its totient is φ = 778309376.

The previous prime is 1653907471. The next prime is 1653907499. The reversal of 1653907492 is 2947093561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 468895716 + 1185011776 = 21654^2 + 34424^2 .

It is not an unprimeable number, because it can be changed into a prime (1653907499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12161017 + ... + 12161152.

It is an arithmetic number, because the mean of its divisors is an integer number (255382785).

Almost surely, 2^1653907492 is an apocalyptic number.

It is an amenable number.

1653907492 is a deficient number, since it is larger than the sum of its proper divisors (1410685928).

1653907492 is a wasteful number, since it uses less digits than its factorization.

1653907492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24322190 (or 24322188 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 1653907492 is about 40668.2614823894. The cubic root of 1653907492 is about 1182.5978129633.

The spelling of 1653907492 in words is "one billion, six hundred fifty-three million, nine hundred seven thousand, four hundred ninety-two".