61601244 has 12 divisors (see below), whose sum is σ = 143736264. Its totient is φ = 20533744.

The previous prime is 61601231. The next prime is 61601279. The reversal of 61601244 is 44210616.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2566707 + ... + 2566730.

It is an arithmetic number, because the mean of its divisors is an integer number (11978022).

Almost surely, 2^61601244 is an apocalyptic number.

It is an amenable number.

61601244 is an abundant number, since it is smaller than the sum of its proper divisors (82135020).

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

61601244 is a wasteful number, since it uses less digits than its factorization.

61601244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133444 (or 5133442 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 61601244 is about 7848.6459978776. The cubic root of 61601244 is about 394.9388229775.

The spelling of 61601244 in words is "sixty-one million, six hundred one thousand, two hundred forty-four".