925784640 has 560 divisors, whose sum is σ = 3823801344. Its totient is φ = 210124800.

The previous prime is 925784621. The next prime is 925784641. The reversal of 925784640 is 46487529.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (925784641) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4846945 + ... + 4847135.

Almost surely, 2^925784640 is an apocalyptic number.

925784640 is a gapful number since it is divisible by the number (90) 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 925784640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1911900672).

925784640 is an abundant number, since it is smaller than the sum of its proper divisors (2898016704).

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

925784640 is a wasteful number, since it uses less digits than its factorization.

925784640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 925784640 is about 30426.7093192807. The cubic root of 925784640 is about 974.6230021761.

The spelling of 925784640 in words is "nine hundred twenty-five million, seven hundred eighty-four thousand, six hundred forty".