2147321772 has 48 divisors (see below), whose sum is σ = 5579284480. Its totient is φ = 714211344.

The previous prime is 2147321767. The next prime is 2147321843. The reversal of 2147321772 is 2771237412.

It is a super-2 number, since 2×2147321772² = 9221981585010439968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 28533 + ... + 71475.

Almost surely, 2^2147321772 is an apocalyptic number.

It is an amenable number.

2147321772 is an abundant number, since it is smaller than the sum of its proper divisors (3431962708).

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

2147321772 is a wasteful number, since it uses less digits than its factorization.

2147321772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43419 (or 43411 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 2147321772 is about 46339.2034027345. The cubic root of 2147321772 is about 1290.1267371426.

The spelling of 2147321772 in words is "two billion, one hundred forty-seven million, three hundred twenty-one thousand, seven hundred seventy-two".