40239550 has 48 divisors (see below), whose sum is σ = 83244672. Its totient is φ = 14371200.

The previous prime is 40239541. The next prime is 40239553. The reversal of 40239550 is 5593204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40239553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19152 + ... + 21148.

It is an arithmetic number, because the mean of its divisors is an integer number (1734264).

Almost surely, 2^40239550 is an apocalyptic number.

40239550 is an abundant number, since it is smaller than the sum of its proper divisors (43005122).

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

40239550 is a wasteful number, since it uses less digits than its factorization.

40239550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053 (or 2048 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 40239550 is about 6343.4651413876. The cubic root of 40239550 is about 342.6765388927.

The spelling of 40239550 in words is "forty million, two hundred thirty-nine thousand, five hundred fifty".