1653870480 has 80 divisors (see below), whose sum is σ = 5197286400. Its totient is φ = 434985984.

The previous prime is 1653870473. The next prime is 1653870481. The reversal of 1653870480 is 840783561.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1653870481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29680 + ... + 64719.

It is an arithmetic number, because the mean of its divisors is an integer number (64966080).

Almost surely, 2^1653870480 is an apocalyptic number.

1653870480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1653870480 is an abundant number, since it is smaller than the sum of its proper divisors (3543415920).

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

1653870480 is a wasteful number, since it uses less digits than its factorization.

1653870480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94488 (or 94482 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 1653870480 is about 40667.8064321153. The cubic root of 1653870480 is about 1182.5889913017.

The spelling of 1653870480 in words is "one billion, six hundred fifty-three million, eight hundred seventy thousand, four hundred eighty".