199741620 has 48 divisors (see below), whose sum is σ = 602300160. Its totient is φ = 49166976.

The previous prime is 199741603. The next prime is 199741639. The reversal of 199741620 is 26147991.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127260 + ... + 128819.

It is an arithmetic number, because the mean of its divisors is an integer number (12547920).

Almost surely, 2^199741620 is an apocalyptic number.

199741620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199741620 is an abundant number, since it is smaller than the sum of its proper divisors (402558540).

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

199741620 is a wasteful number, since it uses less digits than its factorization.

199741620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256104 (or 256102 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 199741620 is about 14132.9975589045. The cubic root of 199741620 is about 584.5516032147.

The spelling of 199741620 in words is "one hundred ninety-nine million, seven hundred forty-one thousand, six hundred twenty".