64246742 has 12 divisors (see below), whose sum is σ = 112104180. Its totient is φ = 27534276.

The previous prime is 64246727. The next prime is 64246747. The reversal of 64246742 is 24764246.

It is a super-2 number, since 2×64246742² = 8255287715229128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64246747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 327692 + ... + 327887.

It is an arithmetic number, because the mean of its divisors is an integer number (9342015).

Almost surely, 2^64246742 is an apocalyptic number.

64246742 is a deficient number, since it is larger than the sum of its proper divisors (47857438).

64246742 is a wasteful number, since it uses less digits than its factorization.

64246742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655595 (or 655588 counting only the distinct ones).

The product of its digits is 64512, while the sum is 35.

The square root of 64246742 is about 8015.4065399080. The cubic root of 64246742 is about 400.5133866368.

The spelling of 64246742 in words is "sixty-four million, two hundred forty-six thousand, seven hundred forty-two".