995379840 has 640 divisors, whose sum is σ = 4395726720. Its totient is φ = 209018880.

The previous prime is 995379839. The next prime is 995379851. The reversal of 995379840 is 48973599.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4717335 + ... + 4717545.

It is an arithmetic number, because the mean of its divisors is an integer number (6868323).

Almost surely, 2^995379840 is an apocalyptic number.

995379840 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 995379840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2197863360).

995379840 is an abundant number, since it is smaller than the sum of its proper divisors (3400346880).

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

995379840 is a wasteful number, since it uses less digits than its factorization.

995379840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The square root of 995379840 is about 31549.6408854364. The cubic root of 995379840 is about 998.4575687958.

The spelling of 995379840 in words is "nine hundred ninety-five million, three hundred seventy-nine thousand, eight hundred forty".