61450644 has 12 divisors (see below), whose sum is σ = 143384864. Its totient is φ = 20483544.

The previous prime is 61450639. The next prime is 61450651. The reversal of 61450644 is 44605416.

61450644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2560432 + ... + 2560455.

Almost surely, 2^61450644 is an apocalyptic number.

It is an amenable number.

61450644 is an abundant number, since it is smaller than the sum of its proper divisors (81934220).

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

61450644 is a wasteful number, since it uses less digits than its factorization.

61450644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120894 (or 5120892 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 61450644 is about 7839.0461154403. The cubic root of 61450644 is about 394.6167173491.

The spelling of 61450644 in words is "sixty-one million, four hundred fifty thousand, six hundred forty-four".