2173528742 has 32 divisors (see below), whose sum is σ = 4072239360. Its totient is φ = 845275680.

The previous prime is 2173528739. The next prime is 2173528811. The reversal of 2173528742 is 2478253712.

It is a self number, because there is not a number n which added to its sum of digits gives 2173528742.

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, 73109 + ... + 98447.

It is an arithmetic number, because the mean of its divisors is an integer number (127257480).

Almost surely, 2^2173528742 is an apocalyptic number.

2173528742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2173528742 is a deficient number, since it is larger than the sum of its proper divisors (1898710618).

2173528742 is a wasteful number, since it uses less digits than its factorization.

2173528742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25916.

The product of its digits is 188160, while the sum is 41.

The square root of 2173528742 is about 46621.1190556383. The cubic root of 2173528742 is about 1295.3539760725.

The spelling of 2173528742 in words is "two billion, one hundred seventy-three million, five hundred twenty-eight thousand, seven hundred forty-two".