68340744 has 48 divisors (see below), whose sum is σ = 188592300. Its totient is φ = 22349184.

The previous prime is 68340683. The next prime is 68340749. The reversal of 68340744 is 44704386.

It can be written as a sum of positive squares in 2 ways, for example, as 67864644 + 476100 = 8238^2 + 690^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 68340699 and 68340708.

It is not an unprimeable number, because it can be changed into a prime (68340749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5139 + ... + 12770.

Almost surely, 2^68340744 is an apocalyptic number.

It is an amenable number.

68340744 is an abundant number, since it is smaller than the sum of its proper divisors (120251556).

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

68340744 is a wasteful number, since it uses less digits than its factorization.

68340744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17974 (or 17967 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 68340744 is about 8266.8460733220. The cubic root of 68340744 is about 408.8461390447.

The spelling of 68340744 in words is "sixty-eight million, three hundred forty thousand, seven hundred forty-four".