40213311 has 8 divisors (see below), whose sum is σ = 53668224. Its totient is φ = 26783640.

The previous prime is 40213309. The next prime is 40213319. The reversal of 40213311 is 11331204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40213311 - 2¹ = 40213309 is a prime.

It is a super-2 number, since 2×40213311² = 3234220763165442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40213319) 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, 2211 + ... + 9236.

It is an arithmetic number, because the mean of its divisors is an integer number (6708528).

Almost surely, 2^40213311 is an apocalyptic number.

40213311 is a deficient number, since it is larger than the sum of its proper divisors (13454913).

40213311 is a wasteful number, since it uses less digits than its factorization.

40213311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12621.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 40213311 is about 6341.3966127345. The cubic root of 40213311 is about 342.6020396768.

Adding to 40213311 its reverse (11331204), we get a palindrome (51544515).

The spelling of 40213311 in words is "forty million, two hundred thirteen thousand, three hundred eleven".