40250205420 has 48 divisors (see below), whose sum is σ = 112714882560. Its totient is φ = 10732025536.

The previous prime is 40250205419. The next prime is 40250205433. The reversal of 40250205420 is 2450205204.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488791 + ... + 565169.

It is an arithmetic number, because the mean of its divisors is an integer number (2348226720).

Almost surely, 2^40250205420 is an apocalyptic number.

It is an amenable number.

40250205420 is an abundant number, since it is smaller than the sum of its proper divisors (72464677140).

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

40250205420 is a wasteful number, since it uses less digits than its factorization.

40250205420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85174 (or 85172 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The spelling of 40250205420 in words is "forty billion, two hundred fifty million, two hundred five thousand, four hundred twenty".