895904640 has 96 divisors (see below), whose sum is σ = 3093690600. Its totient is φ = 238906368.

The previous prime is 895904629. The next prime is 895904689. The reversal of 895904640 is 46409598.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72010 + ... + 83529.

Almost surely, 2^895904640 is an apocalyptic number.

895904640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

895904640 is an abundant number, since it is smaller than the sum of its proper divisors (2197785960).

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

895904640 is a wasteful number, since it uses less digits than its factorization.

895904640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155564 (or 155549 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 895904640 is about 29931.6661748056. Note that the first 3 decimals coincide. The cubic root of 895904640 is about 964.0227033903.

The spelling of 895904640 in words is "eight hundred ninety-five million, nine hundred four thousand, six hundred forty".