44640149 has 4 divisors (see below), whose sum is σ = 45678336. Its totient is φ = 43601964.

The previous prime is 44640133. The next prime is 44640161. The reversal of 44640149 is 94104644.

44640149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44640149 - 2⁴ = 44640133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44640109) by changing a digit.

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, 519029 + ... + 519114.

It is an arithmetic number, because the mean of its divisors is an integer number (11419584).

Almost surely, 2^44640149 is an apocalyptic number.

It is an amenable number.

44640149 is a deficient number, since it is larger than the sum of its proper divisors (1038187).

44640149 is a wasteful number, since it uses less digits than its factorization.

44640149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038186.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 44640149 is about 6681.3283858826. The cubic root of 44640149 is about 354.7386796026.

The spelling of 44640149 in words is "forty-four million, six hundred forty thousand, one hundred forty-nine".