988764442 has 4 divisors (see below), whose sum is σ = 1483146666. Its totient is φ = 494382220.

The previous prime is 988764419. The next prime is 988764451. The reversal of 988764442 is 244467889.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 580279921 + 408484521 = 24089^2 + 20211^2 .

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 988764442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247191109 + ... + 247191112.

Almost surely, 2^988764442 is an apocalyptic number.

988764442 is a deficient number, since it is larger than the sum of its proper divisors (494382224).

988764442 is a wasteful number, since it uses less digits than its factorization.

988764442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494382223.

The product of its digits is 3096576, while the sum is 52.

The square root of 988764442 is about 31444.6250096897. The cubic root of 988764442 is about 996.2406993680.

The spelling of 988764442 in words is "nine hundred eighty-eight million, seven hundred sixty-four thousand, four hundred forty-two".