1945797252 has 36 divisors (see below), whose sum is σ = 5281451280. Its totient is φ = 555941904.

The previous prime is 1945797251. The next prime is 1945797283. The reversal of 1945797252 is 2527975491.

It is a super-2 number, since 2×1945797252² = 7572253891781503008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1945797195 and 1945797204.

It is not an unprimeable number, because it can be changed into a prime (1945797251) 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, 1654002 + ... + 1655177.

It is an arithmetic number, because the mean of its divisors is an integer number (146706980).

Almost surely, 2^1945797252 is an apocalyptic number.

1945797252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1945797252 is an abundant number, since it is smaller than the sum of its proper divisors (3335654028).

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

1945797252 is a wasteful number, since it uses less digits than its factorization.

1945797252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309200 (or 3309191 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 51.

The square root of 1945797252 is about 44111.1919131642. The cubic root of 1945797252 is about 1248.4347880005.

The spelling of 1945797252 in words is "one billion, nine hundred forty-five million, seven hundred ninety-seven thousand, two hundred fifty-two".