19049700 has 36 divisors (see below), whose sum is σ = 55118000. Its totient is φ = 5079840.

The previous prime is 19049699. The next prime is 19049729. The reversal of 19049700 is 794091.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 31450 + ... + 32049.

Almost surely, 2^19049700 is an apocalyptic number.

19049700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19049700 is an abundant number, since it is smaller than the sum of its proper divisors (36068300).

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

19049700 is a wasteful number, since it uses less digits than its factorization.

19049700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63516 (or 63509 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 19049700 is about 4364.5962012539. The cubic root of 19049700 is about 267.0726281963.

The spelling of 19049700 in words is "nineteen million, forty-nine thousand, seven hundred".