1653289920 has 112 divisors (see below), whose sum is σ = 5832469920. Its totient is φ = 440875008.

The previous prime is 1653289919. The next prime is 1653289931. The reversal of 1653289920 is 299823561.

1653289920 is a `hidden beast` number, since 1 + 6 + 532 + 8 + 99 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87037 + ... + 104316.

Almost surely, 2^1653289920 is an apocalyptic number.

1653289920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1653289920 is an abundant number, since it is smaller than the sum of its proper divisors (4179180000).

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

1653289920 is a wasteful number, since it uses less digits than its factorization.

1653289920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191379 (or 191363 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1653289920 is about 40660.6679728703. The cubic root of 1653289920 is about 1182.4505999295.

The spelling of 1653289920 in words is "one billion, six hundred fifty-three million, two hundred eighty-nine thousand, nine hundred twenty".