64234490 has 8 divisors (see below), whose sum is σ = 115622100. Its totient is φ = 25693792.

The previous prime is 64234439. The next prime is 64234493. The reversal of 64234490 is 9443246.

It can be written as a sum of positive squares in 2 ways, for example, as 62552281 + 1682209 = 7909^2 + 1297^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64234493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3211715 + ... + 3211734.

Almost surely, 2^64234490 is an apocalyptic number.

64234490 is a deficient number, since it is larger than the sum of its proper divisors (51387610).

64234490 is a wasteful number, since it uses less digits than its factorization.

64234490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423456.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 64234490 is about 8014.6422253273. The cubic root of 64234490 is about 400.4879254133.

The spelling of 64234490 in words is "sixty-four million, two hundred thirty-four thousand, four hundred ninety".