194072930 has 32 divisors (see below), whose sum is σ = 362337840. Its totient is φ = 74753280.

The previous prime is 194072911. The next prime is 194072933. The reversal of 194072930 is 39270491.

It can be written as a sum of positive squares in 8 ways, for example, as 101586241 + 92486689 = 10079^2 + 9617^2 .

It is not an unprimeable number, because it can be changed into a prime (194072933) 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, 156272 + ... + 157508.

Almost surely, 2^194072930 is an apocalyptic number.

194072930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194072930 is a deficient number, since it is larger than the sum of its proper divisors (168264910).

194072930 is a wasteful number, since it uses less digits than its factorization.

194072930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 194072930 is about 13931.0060656078. The cubic root of 194072930 is about 578.9685691627.

The spelling of 194072930 in words is "one hundred ninety-four million, seventy-two thousand, nine hundred thirty".