1471617920 has 128 divisors (see below), whose sum is σ = 3817044000. Its totient is φ = 540344320.

The previous prime is 1471617919. The next prime is 1471617941. The reversal of 1471617920 is 297161741.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444431 + ... + 447729.

Almost surely, 2^1471617920 is an apocalyptic number.

1471617920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1471617920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908522000).

1471617920 is an abundant number, since it is smaller than the sum of its proper divisors (2345426080).

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

1471617920 is a wasteful number, since it uses less digits than its factorization.

1471617920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376 (or 3364 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 1471617920 is about 38361.6725391373. The cubic root of 1471617920 is about 1137.4483608969.

The spelling of 1471617920 in words is "one billion, four hundred seventy-one million, six hundred seventeen thousand, nine hundred twenty".