68972430 has 64 divisors (see below), whose sum is σ = 171122688. Its totient is φ = 17781120.

The previous prime is 68972429. The next prime is 68972437. The reversal of 68972430 is 3427986.

It is a super-2 number, since 2×68972430² = 9514392200209800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68972437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163620 + ... + 164040.

It is an arithmetic number, because the mean of its divisors is an integer number (2673792).

Almost surely, 2^68972430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68972430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85561344).

68972430 is an abundant number, since it is smaller than the sum of its proper divisors (102150258).

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

68972430 is a wasteful number, since it uses less digits than its factorization.

68972430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 68972430 is about 8304.9641781286. The cubic root of 68972430 is about 410.1019575900.

The spelling of 68972430 in words is "sixty-eight million, nine hundred seventy-two thousand, four hundred thirty".