40340550 has 24 divisors (see below), whose sum is σ = 100044936. Its totient is φ = 10757440.

The previous prime is 40340549. The next prime is 40340557. The reversal of 40340550 is 5504304.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134319 + ... + 134618.

It is an arithmetic number, because the mean of its divisors is an integer number (4168539).

Almost surely, 2^40340550 is an apocalyptic number.

40340550 is an abundant number, since it is smaller than the sum of its proper divisors (59704386).

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

40340550 is a wasteful number, since it uses less digits than its factorization.

40340550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268952 (or 268947 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 40340550 is about 6351.4211008246. The cubic root of 40340550 is about 342.9630017863.

Adding to 40340550 its reverse (5504304), we get a palindrome (45844854).

The spelling of 40340550 in words is "forty million, three hundred forty thousand, five hundred fifty".