40333394 has 4 divisors (see below), whose sum is σ = 60500094. Its totient is φ = 20166696.

The previous prime is 40333369. The next prime is 40333451. The reversal of 40333394 is 49333304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 13965169 = 5135^2 + 3737^2 .

It is a super-3 number, since 3×40333394³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10083347 + ... + 10083350.

Almost surely, 2^40333394 is an apocalyptic number.

40333394 is a deficient number, since it is larger than the sum of its proper divisors (20166700).

40333394 is a wasteful number, since it uses less digits than its factorization.

40333394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20166699.

The product of its (nonzero) digits is 11664, while the sum is 29.

The square root of 40333394 is about 6350.8577373454. The cubic root of 40333394 is about 342.9427212136.

Adding to 40333394 its reverse (49333304), we get a palindrome (89666698).

The spelling of 40333394 in words is "forty million, three hundred thirty-three thousand, three hundred ninety-four".