61844424 has 64 divisors (see below), whose sum is σ = 162432000. Its totient is φ = 19584576.

The previous prime is 61844413. The next prime is 61844477. The reversal of 61844424 is 42444816.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109567 + ... + 110129.

It is an arithmetic number, because the mean of its divisors is an integer number (2538000).

Almost surely, 2^61844424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61844424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81216000).

61844424 is an abundant number, since it is smaller than the sum of its proper divisors (100587576).

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

61844424 is a wasteful number, since it uses less digits than its factorization.

61844424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 790 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

The square root of 61844424 is about 7864.1225829714. The cubic root of 61844424 is about 395.4578337108.

The spelling of 61844424 in words is "sixty-one million, eight hundred forty-four thousand, four hundred twenty-four".