448628140 has 24 divisors (see below), whose sum is σ = 944701632. Its totient is φ = 178959360.

The previous prime is 448628119. The next prime is 448628149. The reversal of 448628140 is 41826844.

It is a self number, because there is not a number n which added to its sum of digits gives 448628140.

It is not an unprimeable number, because it can be changed into a prime (448628149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23221 + ... + 37900.

It is an arithmetic number, because the mean of its divisors is an integer number (39362568).

Almost surely, 2^448628140 is an apocalyptic number.

It is an amenable number.

448628140 is an abundant number, since it is smaller than the sum of its proper divisors (496073492).

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

448628140 is a wasteful number, since it uses less digits than its factorization.

448628140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61497 (or 61495 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 448628140 is about 21180.8437036866. The cubic root of 448628140 is about 765.5299217543.

The spelling of 448628140 in words is "four hundred forty-eight million, six hundred twenty-eight thousand, one hundred forty".