44143890 has 32 divisors (see below), whose sum is σ = 121080960. Its totient is φ = 10089984.

The previous prime is 44143889. The next prime is 44143901. The reversal of 44143890 is 9834144.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104895 + ... + 105314.

It is an arithmetic number, because the mean of its divisors is an integer number (3783780).

Almost surely, 2^44143890 is an apocalyptic number.

44143890 is an abundant number, since it is smaller than the sum of its proper divisors (76937070).

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

44143890 is a wasteful number, since it uses less digits than its factorization.

44143890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210226.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 44143890 is about 6644.0868447064. The cubic root of 44143890 is about 353.4192495077.

The spelling of 44143890 in words is "forty-four million, one hundred forty-three thousand, eight hundred ninety".