40213334 has 16 divisors (see below), whose sum is σ = 69769728. Its totient is φ = 17026152.

The previous prime is 40213319. The next prime is 40213337. The reversal of 40213334 is 43331204.

It is a super-2 number, since 2×40213334² = 3234224462791112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40213337) 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, 16142 + ... + 18465.

It is an arithmetic number, because the mean of its divisors is an integer number (4360608).

Almost surely, 2^40213334 is an apocalyptic number.

40213334 is a deficient number, since it is larger than the sum of its proper divisors (29556394).

40213334 is a wasteful number, since it uses less digits than its factorization.

40213334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34699.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 40213334 is about 6341.3984262148. The cubic root of 40213334 is about 342.6021049939.

Adding to 40213334 its reverse (43331204), we get a palindrome (83544538).

The spelling of 40213334 in words is "forty million, two hundred thirteen thousand, three hundred thirty-four".