68274520 has 16 divisors (see below), whose sum is σ = 153617760. Its totient is φ = 27309792.

The previous prime is 68274469. The next prime is 68274527. The reversal of 68274520 is 2547286.

It is a super-2 number, since 2×68274520² = 9322820162460800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68274527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853392 + ... + 853471.

It is an arithmetic number, because the mean of its divisors is an integer number (9601110).

Almost surely, 2^68274520 is an apocalyptic number.

It is an amenable number.

68274520 is an abundant number, since it is smaller than the sum of its proper divisors (85343240).

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

68274520 is a wasteful number, since it uses less digits than its factorization.

68274520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706874 (or 1706870 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 68274520 is about 8262.8397055734. The cubic root of 68274520 is about 408.7140354345.

The spelling of 68274520 in words is "sixty-eight million, two hundred seventy-four thousand, five hundred twenty".