19449130 has 16 divisors (see below), whose sum is σ = 35061984. Its totient is φ = 7767760.

The previous prime is 19449109. The next prime is 19449137. The reversal of 19449130 is 3194491.

It is a junction number, because it is equal to n+sod(n) for n = 19449092 and 19449101.

It is not an unprimeable number, because it can be changed into a prime (19449137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8709 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (2191374).

Almost surely, 2^19449130 is an apocalyptic number.

19449130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19449130 is a deficient number, since it is larger than the sum of its proper divisors (15612854).

19449130 is a wasteful number, since it uses less digits than its factorization.

19449130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 19449130 is about 4410.1167784992. The cubic root of 19449130 is about 268.9263720586.

The spelling of 19449130 in words is "nineteen million, four hundred forty-nine thousand, one hundred thirty".