68415426 has 12 divisors (see below), whose sum is σ = 148233462. Its totient is φ = 22805136.

The previous prime is 68415377. The next prime is 68415433. The reversal of 68415426 is 62451486.

It can be written as a sum of positive squares in only one way, i.e., 64786401 + 3629025 = 8049^2 + 1905^2 .

It is a super-2 number, since 2×68415426² = 9361341029522952, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1900411 + ... + 1900446.

Almost surely, 2^68415426 is an apocalyptic number.

68415426 is an abundant number, since it is smaller than the sum of its proper divisors (79818036).

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

68415426 is a wasteful number, since it uses less digits than its factorization.

68415426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800865 (or 3800862 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 68415426 is about 8271.3617983981. The cubic root of 68415426 is about 408.9950123235.

It can be divided in two parts, 684 and 15426, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 68415426 in words is "sixty-eight million, four hundred fifteen thousand, four hundred twenty-six".