68493204 has 72 divisors (see below), whose sum is σ = 197444520. Its totient is φ = 19832832.

The previous prime is 68493197. The next prime is 68493263. The reversal of 68493204 is 40239486.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2883204 + 65610000 = 1698^2 + 8100^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3652 + ... + 12260.

It is an arithmetic number, because the mean of its divisors is an integer number (2742285).

Almost surely, 2^68493204 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 68493204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98722260).

68493204 is an abundant number, since it is smaller than the sum of its proper divisors (128951316).

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

68493204 is a wasteful number, since it uses less digits than its factorization.

68493204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8649 (or 8644 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 68493204 is about 8276.0621070652. The cubic root of 68493204 is about 409.1499421341.

The spelling of 68493204 in words is "sixty-eight million, four hundred ninety-three thousand, two hundred four".