42984260440 has 64 divisors (see below), whose sum is σ = 105608344320. Its totient is φ = 15615600000.

The previous prime is 42984260411. The next prime is 42984260461. The reversal of 42984260440 is 4406248924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415965 + ... + 508915.

It is an arithmetic number, because the mean of its divisors is an integer number (1650130380).

Almost surely, 2^42984260440 is an apocalyptic number.

42984260440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42984260440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52804172160).

42984260440 is an abundant number, since it is smaller than the sum of its proper divisors (62624083880).

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

42984260440 is a wasteful number, since it uses less digits than its factorization.

42984260440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94024 (or 94020 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 42984260440 in words is "forty-two billion, nine hundred eighty-four million, two hundred sixty thousand, four hundred forty".