1098946915 has 32 divisors (see below), whose sum is σ = 1476921600. Its totient is φ = 778081920.

The previous prime is 1098946913. The next prime is 1098946939. The reversal of 1098946915 is 5196498901.

It is a happy number.

It is not a de Polignac number, because 1098946915 - 2¹ = 1098946913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1098946913) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 990381 + ... + 991489.

It is an arithmetic number, because the mean of its divisors is an integer number (46153800).

Almost surely, 2^1098946915 is an apocalyptic number.

1098946915 is a deficient number, since it is larger than the sum of its proper divisors (377974685).

1098946915 is a wasteful number, since it uses less digits than its factorization.

1098946915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587.

The product of its (nonzero) digits is 699840, while the sum is 52.

The square root of 1098946915 is about 33150.3682483317. The cubic root of 1098946915 is about 1031.9505924882.

The spelling of 1098946915 in words is "one billion, ninety-eight million, nine hundred forty-six thousand, nine hundred fifteen".