1098069390 has 48 divisors (see below), whose sum is σ = 3114526896. Its totient is φ = 266198400.

The previous prime is 1098069377. The next prime is 1098069397. The reversal of 1098069390 is 939608901.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098069397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 553591 + ... + 555570.

It is an arithmetic number, because the mean of its divisors is an integer number (64885977).

Almost surely, 2^1098069390 is an apocalyptic number.

1098069390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1098069390 is an abundant number, since it is smaller than the sum of its proper divisors (2016457506).

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

1098069390 is a wasteful number, since it uses less digits than its factorization.

1098069390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109185 (or 1109182 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 1098069390 is about 33137.1300809228. The cubic root of 1098069390 is about 1031.6758435223.

The spelling of 1098069390 in words is "one billion, ninety-eight million, sixty-nine thousand, three hundred ninety".