2171373072 has 60 divisors (see below), whose sum is σ = 6165699120. Its totient is φ = 657990080.

The previous prime is 2171373031. The next prime is 2171373073. The reversal of 2171373072 is 2703731712.

It is a super-2 number, since 2×2171373072² = 9429722035613434368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2171373073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181122 + ... + 192737.

It is an arithmetic number, because the mean of its divisors is an integer number (102761652).

Almost surely, 2^2171373072 is an apocalyptic number.

2171373072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2171373072 is an abundant number, since it is smaller than the sum of its proper divisors (3994326048).

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

2171373072 is a wasteful number, since it uses less digits than its factorization.

2171373072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373892 (or 373875 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 2171373072 is about 46597.9942916001. The cubic root of 2171373072 is about 1294.9255975103.

The spelling of 2171373072 in words is "two billion, one hundred seventy-one million, three hundred seventy-three thousand, seventy-two".