64142862 has 48 divisors (see below), whose sum is σ = 150698880. Its totient is φ = 18146352.

The previous prime is 64142857. The next prime is 64142909. The reversal of 64142862 is 26824146.

It is a super-2 number, since 2×64142862² = 8228613491102088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30439 + ... + 32477.

It is an arithmetic number, because the mean of its divisors is an integer number (3139560).

Almost surely, 2^64142862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64142862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75349440).

64142862 is an abundant number, since it is smaller than the sum of its proper divisors (86556018).

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

64142862 is a wasteful number, since it uses less digits than its factorization.

64142862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165 (or 2158 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 64142862 is about 8008.9238977531. The cubic root of 64142862 is about 400.2974079831.

The spelling of 64142862 in words is "sixty-four million, one hundred forty-two thousand, eight hundred sixty-two".