40354447 has 16 divisors (see below), whose sum is σ = 49280832. Its totient is φ = 32256000.

The previous prime is 40354429. The next prime is 40354451. The reversal of 40354447 is 74445304.

It is not a de Polignac number, because 40354447 - 2⁷ = 40354319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40354487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11947 + ... + 14947.

It is an arithmetic number, because the mean of its divisors is an integer number (3080052).

Almost surely, 2^40354447 is an apocalyptic number.

40354447 is a deficient number, since it is larger than the sum of its proper divisors (8926385).

40354447 is a wasteful number, since it uses less digits than its factorization.

40354447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 40354447 is about 6352.5150137564. The cubic root of 40354447 is about 343.0023799442.

The spelling of 40354447 in words is "forty million, three hundred fifty-four thousand, four hundred forty-seven".