61013744 has 20 divisors (see below), whose sum is σ = 128961240. Its totient is φ = 27733440.

The previous prime is 61013723. The next prime is 61013747. The reversal of 61013744 is 44731016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61013747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173159 + ... + 173510.

It is an arithmetic number, because the mean of its divisors is an integer number (6448062).

Almost surely, 2^61013744 is an apocalyptic number.

It is an amenable number.

61013744 is an abundant number, since it is smaller than the sum of its proper divisors (67947496).

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

61013744 is a wasteful number, since it uses less digits than its factorization.

61013744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346688 (or 346682 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 61013744 is about 7811.1294957900. The cubic root of 61013744 is about 393.6792806897.

The spelling of 61013744 in words is "sixty-one million, thirteen thousand, seven hundred forty-four".