42449495040 has 704 divisors, whose sum is σ = 162428958720. Its totient is φ = 10606215168.

The previous prime is 42449495009. The next prime is 42449495041. The reversal of 42449495040 is 4059494424.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42449495041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 190356369 + ... + 190356591.

Almost surely, 2^42449495040 is an apocalyptic number.

42449495040 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 42449495040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81214479360).

42449495040 is an abundant number, since it is smaller than the sum of its proper divisors (119979463680).

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

42449495040 is an equidigital number, since it uses as much as digits as its factorization.

42449495040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 42449495040 in words is "forty-two billion, four hundred forty-nine million, four hundred ninety-five thousand, forty".