637422480 has 160 divisors (see below), whose sum is σ = 2324851200. Its totient is φ = 159971328.

The previous prime is 637422473. The next prime is 637422493. The reversal of 637422480 is 84224736.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28041 + ... + 45399.

It is an arithmetic number, because the mean of its divisors is an integer number (14530320).

Almost surely, 2^637422480 is an apocalyptic number.

637422480 is a gapful number since it is divisible by the number (60) 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 637422480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1162425600).

637422480 is an abundant number, since it is smaller than the sum of its proper divisors (1687428720).

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

637422480 is a wasteful number, since it uses less digits than its factorization.

637422480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17398 (or 17386 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 637422480 is about 25247.2271744839. The cubic root of 637422480 is about 860.6154239231.

The spelling of 637422480 in words is "six hundred thirty-seven million, four hundred twenty-two thousand, four hundred eighty".