40454394 has 32 divisors (see below), whose sum is σ = 83721600. Its totient is φ = 13021632.

The previous prime is 40454387. The next prime is 40454417. The reversal of 40454394 is 49345404.

40454394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32467 + ... + 33689.

It is an arithmetic number, because the mean of its divisors is an integer number (2616300).

Almost surely, 2^40454394 is an apocalyptic number.

40454394 is an abundant number, since it is smaller than the sum of its proper divisors (43267206).

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

40454394 is a wasteful number, since it uses less digits than its factorization.

40454394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 40454394 is about 6360.3768756262. The cubic root of 40454394 is about 343.2853210477.

Adding to 40454394 its reverse (49345404), we get a palindrome (89799798).

The spelling of 40454394 in words is "forty million, four hundred fifty-four thousand, three hundred ninety-four".