840740364900 has 216 divisors, whose sum is σ = 2705184634880. Its totient is φ = 218325818880.

The previous prime is 840740364883. The next prime is 840740364949. The reversal of 840740364900 is 9463047048.

It is a super-2 number, since 2×840740364900² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5109309 + ... + 5271291.

Almost surely, 2^840740364900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 840740364900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1352592317440).

840740364900 is an abundant number, since it is smaller than the sum of its proper divisors (1864444269980).

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

840740364900 is a wasteful number, since it uses less digits than its factorization.

840740364900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162155 (or 162145 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 840740364900 in words is "eight hundred forty billion, seven hundred forty million, three hundred sixty-four thousand, nine hundred".