988951220 has 24 divisors (see below), whose sum is σ = 2077501608. Its totient is φ = 395446400.

The previous prime is 988951211. The next prime is 988951237. The reversal of 988951220 is 22159889.

It can be written as a sum of positive squares in 4 ways, for example, as 397683364 + 591267856 = 19942^2 + 24316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69950 + ... + 82890.

It is an arithmetic number, because the mean of its divisors is an integer number (86562567).

Almost surely, 2^988951220 is an apocalyptic number.

It is an amenable number.

988951220 is an abundant number, since it is smaller than the sum of its proper divisors (1088550388).

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

988951220 is a wasteful number, since it uses less digits than its factorization.

988951220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16771 (or 16769 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 988951220 is about 31447.5948205900. The cubic root of 988951220 is about 996.3034255078.

The spelling of 988951220 in words is "nine hundred eighty-eight million, nine hundred fifty-one thousand, two hundred twenty".