40240550 has 24 divisors (see below), whose sum is σ = 85540656. Its totient is φ = 13796640.

The previous prime is 40240523. The next prime is 40240553. The reversal of 40240550 is 5504204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240553) 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 11 ways as a sum of consecutive naturals, for example, 57137 + ... + 57836.

It is an arithmetic number, because the mean of its divisors is an integer number (3564194).

Almost surely, 2^40240550 is an apocalyptic number.

40240550 is an abundant number, since it is smaller than the sum of its proper divisors (45300106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40240550 is a wasteful number, since it uses less digits than its factorization.

40240550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114992 (or 114987 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 40240550 is about 6343.5439621713. The cubic root of 40240550 is about 342.6793775071.

Adding to 40240550 its reverse (5504204), we get a palindrome (45744754).

The spelling of 40240550 in words is "forty million, two hundred forty thousand, five hundred fifty".