40210266 has 16 divisors (see below), whose sum is σ = 80485344. Its totient is φ = 13392624.

The previous prime is 40210249. The next prime is 40210267. The reversal of 40210266 is 66201204.

It is a happy number.

It is a super-3 number, since 3×40210266³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40210267) 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, 9865 + ... + 13331.

It is an arithmetic number, because the mean of its divisors is an integer number (5030334).

Almost surely, 2^40210266 is an apocalyptic number.

40210266 is an abundant number, since it is smaller than the sum of its proper divisors (40275078).

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

40210266 is a wasteful number, since it uses less digits than its factorization.

40210266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40210266 is about 6341.1565191217. The cubic root of 40210266 is about 342.5933920465.

The spelling of 40210266 in words is "forty million, two hundred ten thousand, two hundred sixty-six".