42473355440 has 120 divisors (see below), whose sum is σ = 107412968880. Its totient is φ = 15575431680.

The previous prime is 42473355437. The next prime is 42473355443. The reversal of 42473355440 is 4455337424.

It is an interprime number because it is at equal distance from previous prime (42473355437) and next prime (42473355443).

It is not an unprimeable number, because it can be changed into a prime (42473355443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1446182 + ... + 1475258.

It is an arithmetic number, because the mean of its divisors is an integer number (895108074).

Almost surely, 2^42473355440 is an apocalyptic number.

42473355440 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 42473355440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53706484440).

42473355440 is an abundant number, since it is smaller than the sum of its proper divisors (64939613440).

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

42473355440 is a wasteful number, since it uses less digits than its factorization.

42473355440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29171 (or 29134 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 41.

The spelling of 42473355440 in words is "forty-two billion, four hundred seventy-three million, three hundred fifty-five thousand, four hundred forty".