19922930 has 16 divisors (see below), whose sum is σ = 35930520. Its totient is φ = 7953792.

The previous prime is 19922923. The next prime is 19922993. The reversal of 19922930 is 3922991.

19922930 = 1283² + 1284² + ... + 1294².

It can be written as a sum of positive squares in 4 ways, for example, as 8219689 + 11703241 = 2867^2 + 3421^2 .

It is a super-3 number, since 3×19922930³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4556 + ... + 7784.

Almost surely, 2^19922930 is an apocalyptic number.

19922930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19922930 is a deficient number, since it is larger than the sum of its proper divisors (16007590).

19922930 is a wasteful number, since it uses less digits than its factorization.

19922930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 19922930 is about 4463.5109499138. The cubic root of 19922930 is about 271.0926458927.

The spelling of 19922930 in words is "nineteen million, nine hundred twenty-two thousand, nine hundred thirty".