1925265440 has 96 divisors (see below), whose sum is σ = 5471867520. Its totient is φ = 625342464.

The previous prime is 1925265431. The next prime is 1925265443. The reversal of 1925265440 is 445625291.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 1925265394 and 1925265403.

It is not an unprimeable number, because it can be changed into a prime (1925265443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23957 + ... + 66516.

It is an arithmetic number, because the mean of its divisors is an integer number (56998620).

Almost surely, 2^1925265440 is an apocalyptic number.

1925265440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1925265440 is an abundant number, since it is smaller than the sum of its proper divisors (3546602080).

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

1925265440 is a wasteful number, since it uses less digits than its factorization.

1925265440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90514 (or 90506 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 1925265440 is about 43877.8468022304. The cubic root of 1925265440 is about 1244.0281421658.

The spelling of 1925265440 in words is "one billion, nine hundred twenty-five million, two hundred sixty-five thousand, four hundred forty".