64142246 has 8 divisors (see below), whose sum is σ = 109958160. Its totient is φ = 27489528.

The previous prime is 64142209. The next prime is 64142251. The reversal of 64142246 is 64224146.

It is a happy number.

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

It is a super-2 number, since 2×64142246² = 8228455443849032, 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 3 ways as a sum of consecutive naturals, for example, 2290781 + ... + 2290808.

It is an arithmetic number, because the mean of its divisors is an integer number (13744770).

Almost surely, 2^64142246 is an apocalyptic number.

64142246 is a deficient number, since it is larger than the sum of its proper divisors (45815914).

64142246 is a wasteful number, since it uses less digits than its factorization.

64142246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581598.

The product of its digits is 9216, while the sum is 29.

The square root of 64142246 is about 8008.8854405591. The cubic root of 64142246 is about 400.2961265519.

The spelling of 64142246 in words is "sixty-four million, one hundred forty-two thousand, two hundred forty-six".