40312233 has 36 divisors (see below), whose sum is σ = 65470860. Its totient is φ = 23732352.

The previous prime is 40312211. The next prime is 40312241. The reversal of 40312233 is 33221304.

It can be written as a sum of positive squares in 6 ways, for example, as 15129 + 40297104 = 123^2 + 6348^2 .

It is not a de Polignac number, because 40312233 - 2⁵ = 40312201 is a prime.

It is a super-2 number, since 2×40312233² = 3250152258892578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40314233) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 369783 + ... + 369891.

It is an arithmetic number, because the mean of its divisors is an integer number (1818635).

Almost surely, 2^40312233 is an apocalyptic number.

It is an amenable number.

40312233 is a deficient number, since it is larger than the sum of its proper divisors (25158627).

40312233 is a wasteful number, since it uses less digits than its factorization.

40312233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 40312233 is about 6349.1915233359. The cubic root of 40312233 is about 342.8827355152.

Adding to 40312233 its reverse (33221304), we get a palindrome (73533537).

The spelling of 40312233 in words is "forty million, three hundred twelve thousand, two hundred thirty-three".