64426730 has 8 divisors (see below), whose sum is σ = 115968132. Its totient is φ = 25770688.

The previous prime is 64426729. The next prime is 64426741. The reversal of 64426730 is 3762446.

It can be written as a sum of positive squares in 2 ways, for example, as 63952009 + 474721 = 7997^2 + 689^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3221327 + ... + 3221346.

Almost surely, 2^64426730 is an apocalyptic number.

64426730 is a deficient number, since it is larger than the sum of its proper divisors (51541402).

64426730 is a wasteful number, since it uses less digits than its factorization.

64426730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442680.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 64426730 is about 8026.6263149595. The cubic root of 64426730 is about 400.8870522251.

It can be divided in two parts, 64426 and 730, that added together give a palindrome (65156).

The spelling of 64426730 in words is "sixty-four million, four hundred twenty-six thousand, seven hundred thirty".