840315246 has 16 divisors (see below), whose sum is σ = 1704302208. Its totient is φ = 276159800.

The previous prime is 840315241. The next prime is 840315247. The reversal of 840315246 is 642513048.

It is a super-2 number, since 2×840315246² = 1412259425320081032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840315241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985860 + ... + 986711.

It is an arithmetic number, because the mean of its divisors is an integer number (106518888).

Almost surely, 2^840315246 is an apocalyptic number.

840315246 is an abundant number, since it is smaller than the sum of its proper divisors (863986962).

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

840315246 is a wasteful number, since it uses less digits than its factorization.

840315246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972647.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 840315246 is about 28988.1914923991. The cubic root of 840315246 is about 943.6568157574.

The spelling of 840315246 in words is "eight hundred forty million, three hundred fifteen thousand, two hundred forty-six".