42974883840 has 208 divisors, whose sum is σ = 157147676928. Its totient is φ = 9822732288.

The previous prime is 42974883827. The next prime is 42974883841. The reversal of 42974883840 is 4838847924.

It is a happy number.

It is a super-2 number, since 2×42974883840² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42974883841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380119 + ... + 480041.

Almost surely, 2^42974883840 is an apocalyptic number.

42974883840 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 42974883840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78573838464).

42974883840 is an abundant number, since it is smaller than the sum of its proper divisors (114172793088).

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

42974883840 is an equidigital number, since it uses as much as digits as its factorization.

42974883840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99962 (or 99940 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 42974883840 in words is "forty-two billion, nine hundred seventy-four million, eight hundred eighty-three thousand, eight hundred forty".