44609819 has 4 divisors (see below), whose sum is σ = 47233944. Its totient is φ = 41985696.

The previous prime is 44609809. The next prime is 44609821. The reversal of 44609819 is 91890644.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44609819 - 2¹² = 44605723 is a prime.

It is a super-2 number, since 2×44609819² = 3980071902425522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44609809) 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, 1312037 + ... + 1312070.

It is an arithmetic number, because the mean of its divisors is an integer number (11808486).

Almost surely, 2^44609819 is an apocalyptic number.

44609819 is a deficient number, since it is larger than the sum of its proper divisors (2624125).

44609819 is a wasteful number, since it uses less digits than its factorization.

44609819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624124.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 44609819 is about 6679.0582419979. The cubic root of 44609819 is about 354.6583209864.

The spelling of 44609819 in words is "forty-four million, six hundred nine thousand, eight hundred nineteen".