840315300 has 144 divisors (see below), whose sum is σ = 2671704000. Its totient is φ = 202227200.

The previous prime is 840315247. The next prime is 840315313. The reversal of 840315300 is 3513048.

It is a super-2 number, since 2×840315300² = 1412259606828180000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 490846 + ... + 492554.

It is an arithmetic number, because the mean of its divisors is an integer number (18553500).

Almost surely, 2^840315300 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 840315300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1335852000).

840315300 is an abundant number, since it is smaller than the sum of its proper divisors (1831388700).

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

840315300 is a wasteful number, since it uses less digits than its factorization.

840315300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 840315300 is about 28988.1924238128. The cubic root of 840315300 is about 943.6568359711.

Adding to 840315300 its reverse (3513048), we get a palindrome (843828348).

The spelling of 840315300 in words is "eight hundred forty million, three hundred fifteen thousand, three hundred".