61324642 has 16 divisors (see below), whose sum is σ = 93799800. Its totient is φ = 30061440.

The previous prime is 61324639. The next prime is 61324667. The reversal of 61324642 is 24642316.

It can be written as a sum of positive squares in 4 ways, for example, as 60512841 + 811801 = 7779^2 + 901^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61324642.

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, 49284 + ... + 50512.

Almost surely, 2^61324642 is an apocalyptic number.

61324642 is a deficient number, since it is larger than the sum of its proper divisors (32475158).

61324642 is a wasteful number, since it uses less digits than its factorization.

61324642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701.

The product of its digits is 6912, while the sum is 28.

The square root of 61324642 is about 7831.0051717516. The cubic root of 61324642 is about 394.3468177148.

Adding to 61324642 its reverse (24642316), we get a palindrome (85966958).

The spelling of 61324642 in words is "sixty-one million, three hundred twenty-four thousand, six hundred forty-two".