198769340 has 96 divisors (see below), whose sum is σ = 523321344. Its totient is φ = 61608960.

The previous prime is 198769273. The next prime is 198769357. The reversal of 198769340 is 43967891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 518789 + ... + 519171.

It is an arithmetic number, because the mean of its divisors is an integer number (5451264).

Almost surely, 2^198769340 is an apocalyptic number.

198769340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198769340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261660672).

198769340 is an abundant number, since it is smaller than the sum of its proper divisors (324552004).

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

198769340 is a wasteful number, since it uses less digits than its factorization.

198769340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 198769340 is about 14098.5580823005. The cubic root of 198769340 is about 583.6015883658.

The spelling of 198769340 in words is "one hundred ninety-eight million, seven hundred sixty-nine thousand, three hundred forty".