40550494 has 4 divisors (see below), whose sum is σ = 60825744. Its totient is φ = 20275246.

The previous prime is 40550473. The next prime is 40550501. The reversal of 40550494 is 49405504.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10137622 + ... + 10137625.

It is an arithmetic number, because the mean of its divisors is an integer number (15206436).

Almost surely, 2^40550494 is an apocalyptic number.

40550494 is a deficient number, since it is larger than the sum of its proper divisors (20275250).

40550494 is a wasteful number, since it uses less digits than its factorization.

40550494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20275249.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 40550494 is about 6367.9269782245. The cubic root of 40550494 is about 343.5569325094.

Adding to 40550494 its reverse (49405504), we get a palindrome (89955998).

The spelling of 40550494 in words is "forty million, five hundred fifty thousand, four hundred ninety-four".