68202730 has 16 divisors (see below), whose sum is σ = 125620704. Its totient is φ = 26646480.

The previous prime is 68202727. The next prime is 68202731. The reversal of 68202730 is 3720286.

It is a super-2 number, since 2×68202730² = 9303224758905800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68202731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78876 + ... + 79735.

It is an arithmetic number, because the mean of its divisors is an integer number (7851294).

Almost surely, 2^68202730 is an apocalyptic number.

68202730 is a deficient number, since it is larger than the sum of its proper divisors (57417974).

68202730 is a wasteful number, since it uses less digits than its factorization.

68202730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158661.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 68202730 is about 8258.4944148434. The cubic root of 68202730 is about 408.5707322386.

The spelling of 68202730 in words is "sixty-eight million, two hundred two thousand, seven hundred thirty".