868408464 has 80 divisors (see below), whose sum is σ = 2796963840. Its totient is φ = 225559680.

The previous prime is 868408459. The next prime is 868408483. The reversal of 868408464 is 464804868.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 113784 + ... + 121175.

It is an arithmetic number, because the mean of its divisors is an integer number (34962048).

Almost surely, 2^868408464 is an apocalyptic number.

868408464 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

868408464 is an abundant number, since it is smaller than the sum of its proper divisors (1928555376).

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

868408464 is a wasteful number, since it uses less digits than its factorization.

868408464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234988 (or 234982 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 48.

The square root of 868408464 is about 29468.7709957507. The cubic root of 868408464 is about 954.0577913296.

The spelling of 868408464 in words is "eight hundred sixty-eight million, four hundred eight thousand, four hundred sixty-four".