64213458 has 16 divisors (see below), whose sum is σ = 128537280. Its totient is φ = 21386096.

The previous prime is 64213451. The next prime is 64213459. The reversal of 64213458 is 85431246.

It is not an unprimeable number, because it can be changed into a prime (64213451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4288 + ... + 12116.

It is an arithmetic number, because the mean of its divisors is an integer number (8033580).

Almost surely, 2^64213458 is an apocalyptic number.

64213458 is an abundant number, since it is smaller than the sum of its proper divisors (64323822).

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

64213458 is a wasteful number, since it uses less digits than its factorization.

64213458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9201.

The product of its digits is 23040, while the sum is 33.

The square root of 64213458 is about 8013.3300194114. The cubic root of 64213458 is about 400.4442106762. Note that the first 3 decimals are identical.

The spelling of 64213458 in words is "sixty-four million, two hundred thirteen thousand, four hundred fifty-eight".