1977424288 has 48 divisors (see below), whose sum is σ = 4475931264. Its totient is φ = 842376960.

The previous prime is 1977424271. The next prime is 1977424289. The reversal of 1977424288 is 8824247791.

It is not an unprimeable number, because it can be changed into a prime (1977424289) 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, 10978 + ... + 63838.

It is an arithmetic number, because the mean of its divisors is an integer number (93248568).

Almost surely, 2^1977424288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1977424288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2237965632).

1977424288 is an abundant number, since it is smaller than the sum of its proper divisors (2498506976).

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

1977424288 is a wasteful number, since it uses less digits than its factorization.

1977424288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53045 (or 53037 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 52.

The square root of 1977424288 is about 44468.2390926378. The cubic root of 1977424288 is about 1255.1624976490.

The spelling of 1977424288 in words is "one billion, nine hundred seventy-seven million, four hundred twenty-four thousand, two hundred eighty-eight".