19492130 has 16 divisors (see below), whose sum is σ = 40098240. Its totient is φ = 6682992.

The previous prime is 19492129. The next prime is 19492133. The reversal of 19492130 is 3129491.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19492093 and 19492102.

It is not an unprimeable number, because it can be changed into a prime (19492133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139160 + ... + 139299.

It is an arithmetic number, because the mean of its divisors is an integer number (2506140).

Almost surely, 2^19492130 is an apocalyptic number.

19492130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19492130 is an abundant number, since it is smaller than the sum of its proper divisors (20606110).

19492130 is a wasteful number, since it uses less digits than its factorization.

19492130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278473.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 19492130 is about 4414.9892412100. The cubic root of 19492130 is about 269.1244155753.

The spelling of 19492130 in words is "nineteen million, four hundred ninety-two thousand, one hundred thirty".