1098914399 has 8 divisors (see below), whose sum is σ = 1199152848. Its totient is φ = 998732160.

The previous prime is 1098914359. The next prime is 1098914461. The reversal of 1098914399 is 9934198901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1098914399 - 2⁸ = 1098914143 is a prime.

It is a super-2 number, since 2×1098914399² = 2415225712659062402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098914399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098914359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33989 + ... + 57905.

It is an arithmetic number, because the mean of its divisors is an integer number (149894106).

Almost surely, 2^1098914399 is an apocalyptic number.

1098914399 is a deficient number, since it is larger than the sum of its proper divisors (100238449).

1098914399 is a wasteful number, since it uses less digits than its factorization.

1098914399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28105.

The product of its (nonzero) digits is 629856, while the sum is 53.

The square root of 1098914399 is about 33149.8778127462. The cubic root of 1098914399 is about 1031.9404144908.

The spelling of 1098914399 in words is "one billion, ninety-eight million, nine hundred fourteen thousand, three hundred ninety-nine".