40213266 has 32 divisors (see below), whose sum is σ = 82252800. Its totient is φ = 13103376.

The previous prime is 40213259. The next prime is 40213297. The reversal of 40213266 is 66231204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66835 + ... + 67433.

It is an arithmetic number, because the mean of its divisors is an integer number (2570400).

Almost surely, 2^40213266 is an apocalyptic number.

40213266 is an abundant number, since it is smaller than the sum of its proper divisors (42039534).

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

40213266 is a wasteful number, since it uses less digits than its factorization.

40213266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 40213266 is about 6341.3930646192. The cubic root of 40213266 is about 342.6019118825.

The spelling of 40213266 in words is "forty million, two hundred thirteen thousand, two hundred sixty-six".