1925227720 has 96 divisors (see below), whose sum is σ = 4842443520. Its totient is φ = 687847680.

The previous prime is 1925227663. The next prime is 1925227721. The reversal of 1925227720 is 277225291.

It is a self number, because there is not a number n which added to its sum of digits gives 1925227720.

It is not an unprimeable number, because it can be changed into a prime (1925227721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204967 + ... + 214153.

It is an arithmetic number, because the mean of its divisors is an integer number (50442120).

Almost surely, 2^1925227720 is an apocalyptic number.

1925227720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1925227720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2421221760).

1925227720 is an abundant number, since it is smaller than the sum of its proper divisors (2917215800).

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

1925227720 is a wasteful number, since it uses less digits than its factorization.

1925227720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9255 (or 9238 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 1925227720 is about 43877.4169704644. The cubic root of 1925227720 is about 1244.0200177367.

The spelling of 1925227720 in words is "one billion, nine hundred twenty-five million, two hundred twenty-seven thousand, seven hundred twenty".