39440226 has 32 divisors (see below), whose sum is σ = 90574848. Its totient is φ = 11215440.

The previous prime is 39440213. The next prime is 39440227. The reversal of 39440226 is 62204493.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 39440193 and 39440202.

It is not an unprimeable number, because it can be changed into a prime (39440227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7261 + ... + 11471.

It is an arithmetic number, because the mean of its divisors is an integer number (2830464).

Almost surely, 2^39440226 is an apocalyptic number.

39440226 is an abundant number, since it is smaller than the sum of its proper divisors (51134622).

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

39440226 is a wasteful number, since it uses less digits than its factorization.

39440226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 39440226 is about 6280.1453804828. The cubic root of 39440226 is about 340.3923555878.

The spelling of 39440226 in words is "thirty-nine million, four hundred forty thousand, two hundred twenty-six".