19468940 has 24 divisors (see below), whose sum is σ = 41065920. Its totient is φ = 7753088.

The previous prime is 19468931. The next prime is 19468949. The reversal of 19468940 is 4986491.

It is an interprime number because it is at equal distance from previous prime (19468931) and next prime (19468949).

It is not an unprimeable number, because it can be changed into a prime (19468949) 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, 2744 + ... + 6816.

It is an arithmetic number, because the mean of its divisors is an integer number (1711080).

Almost surely, 2^19468940 is an apocalyptic number.

19468940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19468940 is an abundant number, since it is smaller than the sum of its proper divisors (21596980).

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

19468940 is a wasteful number, since it uses less digits than its factorization.

19468940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321 (or 4319 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 19468940 is about 4412.3621791508. The cubic root of 19468940 is about 269.0176464702.

The spelling of 19468940 in words is "nineteen million, four hundred sixty-eight thousand, nine hundred forty".