61827040 has 48 divisors (see below), whose sum is σ = 159349680. Its totient is φ = 22481920.

The previous prime is 61827019. The next prime is 61827053. The reversal of 61827040 is 4072816.

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, 15805 + ... + 19324.

It is an arithmetic number, because the mean of its divisors is an integer number (3319785).

Almost surely, 2^61827040 is an apocalyptic number.

It is an amenable number.

61827040 is an abundant number, since it is smaller than the sum of its proper divisors (97522640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61827040 is a wasteful number, since it uses less digits than its factorization.

61827040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35155 (or 35147 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 61827040 is about 7863.0172325895. The cubic root of 61827040 is about 395.4207768360.

Adding to 61827040 its reverse (4072816), we get a palindrome (65899856).

The spelling of 61827040 in words is "sixty-one million, eight hundred twenty-seven thousand, forty".