64258194 has 96 divisors (see below), whose sum is σ = 173712384. Its totient is φ = 15387840.

The previous prime is 64258157. The next prime is 64258199. The reversal of 64258194 is 49185246.

It is a super-2 number, since 2×64258194² = 8258230992283272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (64258199) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77667 + ... + 78489.

It is an arithmetic number, because the mean of its divisors is an integer number (1809504).

Almost surely, 2^64258194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64258194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86856192).

64258194 is an abundant number, since it is smaller than the sum of its proper divisors (109454190).

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

64258194 is a wasteful number, since it uses less digits than its factorization.

64258194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 859 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 64258194 is about 8016.1208823221. The cubic root of 64258194 is about 400.5371824313.

The spelling of 64258194 in words is "sixty-four million, two hundred fifty-eight thousand, one hundred ninety-four".