19379740 has 24 divisors (see below), whose sum is σ = 40792752. Its totient is φ = 7733760.

The previous prime is 19379729. The next prime is 19379741. The reversal of 19379740 is 4797391.

It is a junction number, because it is equal to n+sod(n) for n = 19379693 and 19379702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19379741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10572 + ... + 12268.

It is an arithmetic number, because the mean of its divisors is an integer number (1699698).

Almost surely, 2^19379740 is an apocalyptic number.

19379740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19379740 is an abundant number, since it is smaller than the sum of its proper divisors (21413012).

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

19379740 is a wasteful number, since it uses less digits than its factorization.

19379740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277 (or 2275 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 19379740 is about 4402.2426103067. The cubic root of 19379740 is about 268.6061685752.

The spelling of 19379740 in words is "nineteen million, three hundred seventy-nine thousand, seven hundred forty".