1653939120 has 40 divisors (see below), whose sum is σ = 5127212016. Its totient is φ = 441050368.

The previous prime is 1653939101. The next prime is 1653939127. The reversal of 1653939120 is 219393561.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1653939120² = 5471029225332748800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1653939127) 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, 3445467 + ... + 3445946.

Almost surely, 2^1653939120 is an apocalyptic number.

1653939120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1653939120 is an abundant number, since it is smaller than the sum of its proper divisors (3473272896).

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

1653939120 is a wasteful number, since it uses less digits than its factorization.

1653939120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891429 (or 6891423 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 1653939120 is about 40668.6503341333. The cubic root of 1653939120 is about 1182.6053512659.

The spelling of 1653939120 in words is "one billion, six hundred fifty-three million, nine hundred thirty-nine thousand, one hundred twenty".