44400012 has 12 divisors (see below), whose sum is σ = 103600056. Its totient is φ = 14800000.

The previous prime is 44400001. The next prime is 44400023. The reversal of 44400012 is 21000444.

It is an interprime number because it is at equal distance from previous prime (44400001) and next prime (44400023).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×44400012² = 3942722131200288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44399964 and 44400000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1849989 + ... + 1850012.

It is an arithmetic number, because the mean of its divisors is an integer number (8633338).

Almost surely, 2^44400012 is an apocalyptic number.

It is an amenable number.

44400012 is an abundant number, since it is smaller than the sum of its proper divisors (59200044).

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

44400012 is a wasteful number, since it uses less digits than its factorization.

44400012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700008 (or 3700006 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 44400012 is about 6663.3334000333. Note that the first 3 decimals coincide. The cubic root of 44400012 is about 354.1014424079.

Adding to 44400012 its reverse (21000444), we get a palindrome (65400456).

The spelling of 44400012 in words is "forty-four million, four hundred thousand, twelve".