995001840 has 640 divisors, whose sum is σ = 4285440000. Its totient is φ = 211341312.

The previous prime is 995001829. The next prime is 995001863. The reversal of 995001840 is 48100599.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 995001795 and 995001804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12594921 + ... + 12594999.

It is an arithmetic number, because the mean of its divisors is an integer number (6696000).

Almost surely, 2^995001840 is an apocalyptic number.

995001840 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 995001840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2142720000).

995001840 is an abundant number, since it is smaller than the sum of its proper divisors (3290438160).

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

995001840 is a wasteful number, since it uses less digits than its factorization.

995001840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 995001840 is about 31543.6497571223. The cubic root of 995001840 is about 998.3311631996.

The spelling of 995001840 in words is "nine hundred ninety-five million, one thousand, eight hundred forty".