68427436 has 72 divisors (see below), whose sum is σ = 158493440. Its totient is φ = 25233120.

The previous prime is 68427409. The next prime is 68427481. The reversal of 68427436 is 63472486.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63841 + ... + 64903.

Almost surely, 2^68427436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68427436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79246720).

68427436 is an abundant number, since it is smaller than the sum of its proper divisors (90066004).

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

68427436 is a wasteful number, since it uses less digits than its factorization.

68427436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1102 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 68427436 is about 8272.0877654919. The cubic root of 68427436 is about 409.0189432944.

It can be divided in two parts, 684 and 27436, that multiplied together give a square (18766224 = 4332²).

The spelling of 68427436 in words is "sixty-eight million, four hundred twenty-seven thousand, four hundred thirty-six".