40340546 has 4 divisors (see below), whose sum is σ = 60510822. Its totient is φ = 20170272.

The previous prime is 40340543. The next prime is 40340549. The reversal of 40340546 is 64504304.

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

It is an interprime number because it is at equal distance from previous prime (40340543) and next prime (40340549).

It can be written as a sum of positive squares in only one way, i.e., 34633225 + 5707321 = 5885^2 + 2389^2 .

It is not an unprimeable number, because it can be changed into a prime (40340543) 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 as a sum of consecutive naturals, namely, 10085135 + ... + 10085138.

Almost surely, 2^40340546 is an apocalyptic number.

40340546 is a deficient number, since it is larger than the sum of its proper divisors (20170276).

40340546 is a wasteful number, since it uses less digits than its factorization.

40340546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20170275.

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

The square root of 40340546 is about 6351.4207859344. The cubic root of 40340546 is about 342.9629904508.

The spelling of 40340546 in words is "forty million, three hundred forty thousand, five hundred forty-six".