64481942 has 16 divisors (see below), whose sum is σ = 112797600. Its totient is φ = 27634824.

The previous prime is 64481909. The next prime is 64481947. The reversal of 64481942 is 24918446.

It is a junction number, because it is equal to n+sod(n) for n = 64481896 and 64481905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64481947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46313 + ... + 47684.

It is an arithmetic number, because the mean of its divisors is an integer number (7049850).

Almost surely, 2^64481942 is an apocalyptic number.

64481942 is a deficient number, since it is larger than the sum of its proper divisors (48315658).

64481942 is an equidigital number, since it uses as much as digits as its factorization.

64481942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94020 (or 94006 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 64481942 is about 8030.0648814315. The cubic root of 64481942 is about 401.0015360542.

The spelling of 64481942 in words is "sixty-four million, four hundred eighty-one thousand, nine hundred forty-two".