1098653934 has 32 divisors (see below), whose sum is σ = 2658928896. Its totient is φ = 295436160.

The previous prime is 1098653923. The next prime is 1098653939. The reversal of 1098653934 is 4393568901.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098653939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768652 + ... + 770079.

It is an arithmetic number, because the mean of its divisors is an integer number (83091528).

Almost surely, 2^1098653934 is an apocalyptic number.

1098653934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1098653934 is an abundant number, since it is smaller than the sum of its proper divisors (1560274962).

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

1098653934 is a wasteful number, since it uses less digits than its factorization.

1098653934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538760.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 1098653934 is about 33145.9489832468. The cubic root of 1098653934 is about 1031.8588777794.

The spelling of 1098653934 in words is "one billion, ninety-eight million, six hundred fifty-three thousand, nine hundred thirty-four".