68499420 has 48 divisors (see below), whose sum is σ = 209236608. Its totient is φ = 16605760.

The previous prime is 68499419. The next prime is 68499439. The reversal of 68499420 is 2499486.

68499420 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

68499420 is strictly pandigital in base 9.

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, 51234 + ... + 52553.

It is an arithmetic number, because the mean of its divisors is an integer number (4359096).

Almost surely, 2^68499420 is an apocalyptic number.

68499420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68499420 is an abundant number, since it is smaller than the sum of its proper divisors (140737188).

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

68499420 is a wasteful number, since it uses less digits than its factorization.

68499420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103810 (or 103808 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 68499420 is about 8276.4376394678. The cubic root of 68499420 is about 409.1623190268.

The spelling of 68499420 in words is "sixty-eight million, four hundred ninety-nine thousand, four hundred twenty".