40401827790 has 32 divisors (see below), whose sum is σ = 97195835520. Its totient is φ = 10748104224.

The previous prime is 40401827789. The next prime is 40401827801. The reversal of 40401827790 is 9772810404.

It is a happy number.

It is a congruent 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, 1594504 + ... + 1619643.

It is an arithmetic number, because the mean of its divisors is an integer number (3037369860).

Almost surely, 2^40401827790 is an apocalyptic number.

40401827790 is an abundant number, since it is smaller than the sum of its proper divisors (56794007730).

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

40401827790 is a wasteful number, since it uses less digits than its factorization.

40401827790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214576.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 40401827790 in words is "forty billion, four hundred one million, eight hundred twenty-seven thousand, seven hundred ninety".