64430542 has 16 divisors (see below), whose sum is σ = 108282672. Its totient is φ = 28494720.

The previous prime is 64430533. The next prime is 64430549. The reversal of 64430542 is 24503446.

It is a self number, because there is not a number n which added to its sum of digits gives 64430542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64430549) 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, 38763 + ... + 40390.

It is an arithmetic number, because the mean of its divisors is an integer number (6767667).

Almost surely, 2^64430542 is an apocalyptic number.

64430542 is a deficient number, since it is larger than the sum of its proper divisors (43852130).

64430542 is a wasteful number, since it uses less digits than its factorization.

64430542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79203.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 64430542 is about 8026.8637711126. The cubic root of 64430542 is about 400.8949586293.

Adding to 64430542 its reverse (24503446), we get a palindrome (88933988).

The spelling of 64430542 in words is "sixty-four million, four hundred thirty thousand, five hundred forty-two".