840468902 has 32 divisors (see below), whose sum is σ = 1555986432. Its totient is φ = 331560864.

The previous prime is 840468887. The next prime is 840468917. The reversal of 840468902 is 209864048.

It is an interprime number because it is at equal distance from previous prime (840468887) and next prime (840468917).

It is a self number, because there is not a number n which added to its sum of digits gives 840468902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60503 + ... + 73085.

It is an arithmetic number, because the mean of its divisors is an integer number (48624576).

Almost surely, 2^840468902 is an apocalyptic number.

840468902 is a deficient number, since it is larger than the sum of its proper divisors (715517530).

840468902 is a wasteful number, since it uses less digits than its factorization.

840468902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12972.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 840468902 is about 28990.8416918171. The cubic root of 840468902 is about 943.7143297659.

The spelling of 840468902 in words is "eight hundred forty million, four hundred sixty-eight thousand, nine hundred two".