40250020 has 24 divisors (see below), whose sum is σ = 85546944. Its totient is φ = 15905376.

The previous prime is 40250011. The next prime is 40250029. The reversal of 40250020 is 2005204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40250011) and next prime (40250029).

It is a super-2 number, since 2×40250020² = 3240128220000800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40250029) 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 7 ways as a sum of consecutive naturals, for example, 10464 + ... + 13783.

It is an arithmetic number, because the mean of its divisors is an integer number (3564456).

Almost surely, 2^40250020 is an apocalyptic number.

It is an amenable number.

40250020 is an abundant number, since it is smaller than the sum of its proper divisors (45296924).

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

40250020 is a wasteful number, since it uses less digits than its factorization.

40250020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24339 (or 24337 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 40250020 is about 6344.2903464454. The cubic root of 40250020 is about 342.7062568546.

Adding to 40250020 its reverse (2005204), we get a palindrome (42255224).

The spelling of 40250020 in words is "forty million, two hundred fifty thousand, twenty".