40266446 has 16 divisors (see below), whose sum is σ = 66573360. Its totient is φ = 18113280.

The previous prime is 40266437. The next prime is 40266449. The reversal of 40266446 is 64466204.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40266449) 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, 7301 + ... + 11568.

It is an arithmetic number, because the mean of its divisors is an integer number (4160835).

Almost surely, 2^40266446 is an apocalyptic number.

40266446 is a deficient number, since it is larger than the sum of its proper divisors (26306914).

40266446 is a wasteful number, since it uses less digits than its factorization.

40266446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18979.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 40266446 is about 6345.5847642278. The cubic root of 40266446 is about 342.7528698946.

The spelling of 40266446 in words is "forty million, two hundred sixty-six thousand, four hundred forty-six".