19160940 has 48 divisors (see below), whose sum is σ = 54966240. Its totient is φ = 4984320.

The previous prime is 19160927. The next prime is 19160941. The reversal of 19160940 is 4906191.

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

It is a junction number, because it is equal to n+sod(n) for n = 19160898 and 19160907.

It is not an unprimeable number, because it can be changed into a prime (19160941) 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 15 ways as a sum of consecutive naturals, for example, 1435 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (1145130).

Almost surely, 2^19160940 is an apocalyptic number.

19160940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19160940 is an abundant number, since it is smaller than the sum of its proper divisors (35805300).

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

19160940 is a wasteful number, since it uses less digits than its factorization.

19160940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7842 (or 7840 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 19160940 is about 4377.3210985716. The cubic root of 19160940 is about 267.5914730694.

It can be divided in two parts, 19160 and 940, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 19160940 in words is "nineteen million, one hundred sixty thousand, nine hundred forty".