40354406 has 4 divisors (see below), whose sum is σ = 60531612. Its totient is φ = 20177202.

The previous prime is 40354387. The next prime is 40354409. The reversal of 40354406 is 60445304.

40354406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×40354406² = 3256956167225672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40354409) by changing a digit.

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 as a sum of consecutive naturals, namely, 10088600 + ... + 10088603.

It is an arithmetic number, because the mean of its divisors is an integer number (15132903).

Almost surely, 2^40354406 is an apocalyptic number.

40354406 is a deficient number, since it is larger than the sum of its proper divisors (20177206).

40354406 is a wasteful number, since it uses less digits than its factorization.

40354406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20177205.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 40354406 is about 6352.5117866872. The cubic root of 40354406 is about 343.0022637810.

The spelling of 40354406 in words is "forty million, three hundred fifty-four thousand, four hundred six".