40015250 has 32 divisors (see below), whose sum is σ = 81724032. Its totient is φ = 14550000.

The previous prime is 40015249. The next prime is 40015259. The reversal of 40015250 is 5251004.

It is not an unprimeable number, because it can be changed into a prime (40015259) 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 15 ways as a sum of consecutive naturals, for example, 4526 + ... + 10025.

It is an arithmetic number, because the mean of its divisors is an integer number (2553876).

Almost surely, 2^40015250 is an apocalyptic number.

40015250 is an abundant number, since it is smaller than the sum of its proper divisors (41708782).

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

40015250 is a wasteful number, since it uses less digits than its factorization.

40015250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14579 (or 14569 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 40015250 is about 6325.7608238061. The cubic root of 40015250 is about 342.0386457019.

Adding to 40015250 its reverse (5251004), we get a palindrome (45266254).

The spelling of 40015250 in words is "forty million, fifteen thousand, two hundred fifty".