1547960020 has 48 divisors (see below), whose sum is σ = 3433731840. Its totient is φ = 584551296.

The previous prime is 1547960003. The next prime is 1547960033. The reversal of 1547960020 is 200697451.

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, 104389 + ... + 118291.

It is an arithmetic number, because the mean of its divisors is an integer number (71536080).

Almost surely, 2^1547960020 is an apocalyptic number.

1547960020 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 1547960020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716865920).

1547960020 is an abundant number, since it is smaller than the sum of its proper divisors (1885771820).

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

1547960020 is a wasteful number, since it uses less digits than its factorization.

1547960020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14224 (or 14222 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1547960020 is about 39344.1230681280. The cubic root of 1547960020 is about 1156.7865930331.

The spelling of 1547960020 in words is "one billion, five hundred forty-seven million, nine hundred sixty thousand, twenty".