426004199440 has 40 divisors (see below), whose sum is σ = 1007247228480. Its totient is φ = 167513513856.

The previous prime is 426004199429. The next prime is 426004199443. The reversal of 426004199440 is 44991400624.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (426004199443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45122844 + ... + 45132283.

It is an arithmetic number, because the mean of its divisors is an integer number (25181180712).

Almost surely, 2^426004199440 is an apocalyptic number.

426004199440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

426004199440 is an abundant number, since it is smaller than the sum of its proper divisors (581243029040).

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

426004199440 is a wasteful number, since it uses less digits than its factorization.

426004199440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90255199 (or 90255193 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 426004199440 in words is "four hundred twenty-six billion, four million, one hundred ninety-nine thousand, four hundred forty".