40454546 has 8 divisors (see below), whose sum is σ = 66198384. Its totient is φ = 18388420.

The previous prime is 40454527. The next prime is 40454549. The reversal of 40454546 is 64545404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40454546² = 3273140584132232, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40454549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919400 + ... + 919443.

It is an arithmetic number, because the mean of its divisors is an integer number (8274798).

Almost surely, 2^40454546 is an apocalyptic number.

40454546 is a deficient number, since it is larger than the sum of its proper divisors (25743838).

40454546 is a wasteful number, since it uses less digits than its factorization.

40454546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838856.

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 40454546 is about 6360.3888245924. The cubic root of 40454546 is about 343.2857509912.

The spelling of 40454546 in words is "forty million, four hundred fifty-four thousand, five hundred forty-six".