64549042 has 16 divisors (see below), whose sum is σ = 102180960. Its totient is φ = 30497472.

The previous prime is 64549021. The next prime is 64549049. The reversal of 64549042 is 24094546.

It is a junction number, because it is equal to n+sod(n) for n = 64548989 and 64549007.

It is not an unprimeable number, because it can be changed into a prime (64549049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14493 + ... + 18415.

It is an arithmetic number, because the mean of its divisors is an integer number (6386310).

Almost surely, 2^64549042 is an apocalyptic number.

64549042 is a deficient number, since it is larger than the sum of its proper divisors (37631918).

64549042 is a wasteful number, since it uses less digits than its factorization.

64549042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 64549042 is about 8034.2418435096. The cubic root of 64549042 is about 401.1405820900.

The spelling of 64549042 in words is "sixty-four million, five hundred forty-nine thousand, forty-two".