1398345098 has 32 divisors (see below), whose sum is σ = 2297393280. Its totient is φ = 635696640.

The previous prime is 1398345097. The next prime is 1398345119. The reversal of 1398345098 is 8905438931.

It is not an unprimeable number, because it can be changed into a prime (1398345097) 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, 138713 + ... + 148451.

It is an arithmetic number, because the mean of its divisors is an integer number (71793540).

Almost surely, 2^1398345098 is an apocalyptic number.

1398345098 is a deficient number, since it is larger than the sum of its proper divisors (899048182).

1398345098 is a wasteful number, since it uses less digits than its factorization.

1398345098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9902.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 1398345098 is about 37394.4527704311. The cubic root of 1398345098 is about 1118.2479776737.

The spelling of 1398345098 in words is "one billion, three hundred ninety-eight million, three hundred forty-five thousand, ninety-eight".