1098969445 has 32 divisors (see below), whose sum is σ = 1524499200. Its totient is φ = 744961536.

The previous prime is 1098969427. The next prime is 1098969461. The reversal of 1098969445 is 5449698901.

It is a cyclic number.

It is not a de Polignac number, because 1098969445 - 2¹⁵ = 1098936677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1931121 + ... + 1931689.

It is an arithmetic number, because the mean of its divisors is an integer number (47640600).

Almost surely, 2^1098969445 is an apocalyptic number.

It is an amenable number.

1098969445 is a deficient number, since it is larger than the sum of its proper divisors (425529755).

1098969445 is a wasteful number, since it uses less digits than its factorization.

1098969445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 1098969445 is about 33150.7080618197. The cubic root of 1098969445 is about 1031.9576445995.

The spelling of 1098969445 in words is "one billion, ninety-eight million, nine hundred sixty-nine thousand, four hundred forty-five".