1098857692 has 12 divisors (see below), whose sum is σ = 1959284376. Its totient is φ = 539062160.

The previous prime is 1098857671. The next prime is 1098857693. The reversal of 1098857692 is 2967588901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098857693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2591434 + ... + 2591857.

It is an arithmetic number, because the mean of its divisors is an integer number (163273698).

Almost surely, 2^1098857692 is an apocalyptic number.

It is an amenable number.

1098857692 is a deficient number, since it is larger than the sum of its proper divisors (860426684).

1098857692 is a wasteful number, since it uses less digits than its factorization.

1098857692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183348 (or 5183346 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The square root of 1098857692 is about 33149.0224893586. The cubic root of 1098857692 is about 1031.9226638660.

The spelling of 1098857692 in words is "one billion, ninety-eight million, eight hundred fifty-seven thousand, six hundred ninety-two".