40449296 has 20 divisors (see below), whose sum is σ = 80899584. Its totient is φ = 19572000.

The previous prime is 40449293. The next prime is 40449313. The reversal of 40449296 is 69294404.

40449296 is an admirable number.

It is a super-2 number, since 2×40449296² = 3272291093791232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40449293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40280 + ... + 41271.

Almost surely, 2^40449296 is an apocalyptic number.

It is an amenable number.

40449296 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40449296 is a wasteful number, since it uses less digits than its factorization.

40449296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81590 (or 81584 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 40449296 is about 6359.9761005840. The cubic root of 40449296 is about 343.2709003474.

Adding to 40449296 its product of nonzero digits (62208), we get a palindrome (40511504).

The spelling of 40449296 in words is "forty million, four hundred forty-nine thousand, two hundred ninety-six".