1098969444 has 36 divisors (see below), whose sum is σ = 2880840144. Its totient is φ = 366322824.

The previous prime is 1098969427. The next prime is 1098969461. The reversal of 1098969444 is 4449698901.

It is a happy number.

1098969444 is a `hidden beast` number, since 109 + 8 + 96 + 9 + 444 = 666.

It is an interprime number because it is at equal distance from previous prime (1098969427) and next prime (1098969461).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564342 + ... + 566285.

Almost surely, 2^1098969444 is an apocalyptic number.

It is an amenable number.

1098969444 is an abundant number, since it is smaller than the sum of its proper divisors (1781870700).

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

1098969444 is a wasteful number, since it uses less digits than its factorization.

1098969444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130646 (or 1130632 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 1098969444 is about 33150.7080467371. The cubic root of 1098969444 is about 1031.9576442865.

The spelling of 1098969444 in words is "one billion, ninety-eight million, nine hundred sixty-nine thousand, four hundred forty-four".