64245542 has 16 divisors (see below), whose sum is σ = 99185472. Its totient is φ = 31187520.

The previous prime is 64245523. The next prime is 64245551. The reversal of 64245542 is 24554246.

It is a junction number, because it is equal to n+sod(n) for n = 64245499 and 64245508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66938 + ... + 67890.

It is an arithmetic number, because the mean of its divisors is an integer number (6199092).

Almost surely, 2^64245542 is an apocalyptic number.

64245542 is a deficient number, since it is larger than the sum of its proper divisors (34939930).

64245542 is a wasteful number, since it uses less digits than its factorization.

64245542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903.

The product of its digits is 38400, while the sum is 32.

The square root of 64245542 is about 8015.3316837171. The cubic root of 64245542 is about 400.5108930263.

Adding to 64245542 its reverse (24554246), we get a palindrome (88799788).

The spelling of 64245542 in words is "sixty-four million, two hundred forty-five thousand, five hundred forty-two".