2193979425 has 48 divisors (see below), whose sum is σ = 3962038080. Its totient is φ = 1062432000.

The previous prime is 2193979397. The next prime is 2193979433. The reversal of 2193979425 is 5249793912.

It is not a de Polignac number, because 2193979425 - 2⁵ = 2193979393 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1177995 + ... + 1179855.

It is an arithmetic number, because the mean of its divisors is an integer number (82542460).

Almost surely, 2^2193979425 is an apocalyptic number.

2193979425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2193979425 is a deficient number, since it is larger than the sum of its proper divisors (1768058655).

2193979425 is a wasteful number, since it uses less digits than its factorization.

2193979425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314 (or 3309 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 2193979425 is about 46839.9340840698. The cubic root of 2193979425 is about 1299.4039525935.

It can be divided in two parts, 219397 and 9425, that added together give a palindrome (228822).

The spelling of 2193979425 in words is "two billion, one hundred ninety-three million, nine hundred seventy-nine thousand, four hundred twenty-five".