64438226 has 16 divisors (see below), whose sum is σ = 101279808. Its totient is φ = 30690000.

The previous prime is 64438223. The next prime is 64438229. The reversal of 64438226 is 62283446.

It is an interprime number because it is at equal distance from previous prime (64438223) and next prime (64438229).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64438223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8756 + ... + 14336.

It is an arithmetic number, because the mean of its divisors is an integer number (6329988).

Almost surely, 2^64438226 is an apocalyptic number.

64438226 is a deficient number, since it is larger than the sum of its proper divisors (36841582).

64438226 is a wasteful number, since it uses less digits than its factorization.

64438226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857.

The product of its digits is 55296, while the sum is 35.

The square root of 64438226 is about 8027.3423995741. The cubic root of 64438226 is about 400.9108949348.

The spelling of 64438226 in words is "sixty-four million, four hundred thirty-eight thousand, two hundred twenty-six".