40258221444 has 144 divisors (see below), whose sum is σ = 121436515200. Its totient is φ = 11234704320.

The previous prime is 40258221431. The next prime is 40258221469. The reversal of 40258221444 is 44412285204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40258221399 and 40258221408.

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 47 ways as a sum of consecutive naturals, for example, 493054 + ... + 568874.

Almost surely, 2^40258221444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40258221444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60718257600).

40258221444 is an abundant number, since it is smaller than the sum of its proper divisors (81178293756).

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

40258221444 is a wasteful number, since it uses less digits than its factorization.

40258221444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75895 (or 75876 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 36.

The spelling of 40258221444 in words is "forty billion, two hundred fifty-eight million, two hundred twenty-one thousand, four hundred forty-four".