98981380 has 24 divisors (see below), whose sum is σ = 212932440. Its totient is φ = 38626560.

The previous prime is 98981359. The next prime is 98981383. The reversal of 98981380 is 8318989.

It can be written as a sum of positive squares in 4 ways, for example, as 614656 + 98366724 = 784^2 + 9918^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 98981380.

It is not an unprimeable number, because it can be changed into a prime (98981383) 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, 59535 + ... + 61174.

It is an arithmetic number, because the mean of its divisors is an integer number (8872185).

Almost surely, 2^98981380 is an apocalyptic number.

It is an amenable number.

98981380 is an abundant number, since it is smaller than the sum of its proper divisors (113951060).

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

98981380 is a wasteful number, since it uses less digits than its factorization.

98981380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120759 (or 120757 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 98981380 is about 9948.9386368597. The cubic root of 98981380 is about 462.5774966316.

It can be divided in two parts, 989 and 81380, that added together give a square (82369 = 287²).

The spelling of 98981380 in words is "ninety-eight million, nine hundred eighty-one thousand, three hundred eighty".