19392988 has 12 divisors (see below), whose sum is σ = 35934192. Its totient is φ = 9126080.

The previous prime is 19392983. The next prime is 19393019. The reversal of 19392988 is 88929391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19392983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142528 + ... + 142663.

It is an arithmetic number, because the mean of its divisors is an integer number (2994516).

Almost surely, 2^19392988 is an apocalyptic number.

It is an amenable number.

19392988 is a deficient number, since it is larger than the sum of its proper divisors (16541204).

19392988 is a wasteful number, since it uses less digits than its factorization.

19392988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285212 (or 285210 counting only the distinct ones).

The product of its digits is 279936, while the sum is 49.

The square root of 19392988 is about 4403.7470408733. The cubic root of 19392988 is about 268.6673610708.

The spelling of 19392988 in words is "nineteen million, three hundred ninety-two thousand, nine hundred eighty-eight".