2173652940 has 24 divisors (see below), whose sum is σ = 6086228400. Its totient is φ = 579640768.

The previous prime is 2173652903. The next prime is 2173652941. The reversal of 2173652940 is 492563712.

2173652940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2173652941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18113715 + ... + 18113834.

It is an arithmetic number, because the mean of its divisors is an integer number (253592850).

Almost surely, 2^2173652940 is an apocalyptic number.

2173652940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2173652940 is an abundant number, since it is smaller than the sum of its proper divisors (3912575460).

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

2173652940 is a wasteful number, since it uses less digits than its factorization.

2173652940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36227561 (or 36227559 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 2173652940 is about 46622.4510295201. The cubic root of 2173652940 is about 1295.3786482880.

The spelling of 2173652940 in words is "two billion, one hundred seventy-three million, six hundred fifty-two thousand, nine hundred forty".