61845472 has 24 divisors (see below), whose sum is σ = 131125176. Its totient is φ = 28543872.

The previous prime is 61845451. The next prime is 61845503. The reversal of 61845472 is 27454816.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73918 + ... + 74749.

It is an arithmetic number, because the mean of its divisors is an integer number (5463549).

Almost surely, 2^61845472 is an apocalyptic number.

It is an amenable number.

61845472 is an abundant number, since it is smaller than the sum of its proper divisors (69279704).

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

61845472 is a wasteful number, since it uses less digits than its factorization.

61845472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148690 (or 148682 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 61845472 is about 7864.1892144073. The cubic root of 61845472 is about 395.4600674743.

The spelling of 61845472 in words is "sixty-one million, eight hundred forty-five thousand, four hundred seventy-two".