1949934198 has 32 divisors (see below), whose sum is σ = 3926572416. Its totient is φ = 645539328.

The previous prime is 1949934157. The next prime is 1949934199. The reversal of 1949934198 is 8914399491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949934199) 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, 1021561 + ... + 1023467.

It is an arithmetic number, because the mean of its divisors is an integer number (122705388).

Almost surely, 2^1949934198 is an apocalyptic number.

1949934198 is an abundant number, since it is smaller than the sum of its proper divisors (1976638218).

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

1949934198 is a wasteful number, since it uses less digits than its factorization.

1949934198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988.

The product of its digits is 2519424, while the sum is 57.

The square root of 1949934198 is about 44158.0592644197. The cubic root of 1949934198 is about 1249.3189245497.

The spelling of 1949934198 in words is "one billion, nine hundred forty-nine million, nine hundred thirty-four thousand, one hundred ninety-eight".