44401385 has 32 divisors (see below), whose sum is σ = 66908160. Its totient is φ = 27580608.

The previous prime is 44401381. The next prime is 44401411. The reversal of 44401385 is 58310444.

It is a cyclic number.

It is not a de Polignac number, because 44401385 - 2² = 44401381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44401381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13844 + ... + 16746.

It is an arithmetic number, because the mean of its divisors is an integer number (2090880).

Almost surely, 2^44401385 is an apocalyptic number.

It is an amenable number.

44401385 is a deficient number, since it is larger than the sum of its proper divisors (22506775).

44401385 is a wasteful number, since it uses less digits than its factorization.

44401385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 44401385 is about 6663.4364257491. The cubic root of 44401385 is about 354.1050923789.

The spelling of 44401385 in words is "forty-four million, four hundred one thousand, three hundred eighty-five".