40249550 has 24 divisors (see below), whose sum is σ = 81671112. Its totient is φ = 14636000.

The previous prime is 40249537. The next prime is 40249567. The reversal of 40249550 is 5594204.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36041 + ... + 37140.

It is an arithmetic number, because the mean of its divisors is an integer number (3402963).

Almost surely, 2^40249550 is an apocalyptic number.

40249550 is an abundant number, since it is smaller than the sum of its proper divisors (41421562).

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

40249550 is a wasteful number, since it uses less digits than its factorization.

40249550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73204 (or 73199 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 40249550 is about 6344.2533051574. The cubic root of 40249550 is about 342.7049229209.

The spelling of 40249550 in words is "forty million, two hundred forty-nine thousand, five hundred fifty".