19412040 has 64 divisors (see below), whose sum is σ = 58968000. Its totient is φ = 5111552.

The previous prime is 19412033. The next prime is 19412059. The reversal of 19412040 is 4021491.

It is a junction number, because it is equal to n+sod(n) for n = 19411998 and 19412016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8986 + ... + 10934.

It is an arithmetic number, because the mean of its divisors is an integer number (921375).

Almost surely, 2^19412040 is an apocalyptic number.

19412040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19412040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29484000).

19412040 is an abundant number, since it is smaller than the sum of its proper divisors (39555960).

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

19412040 is a wasteful number, since it uses less digits than its factorization.

19412040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 19412040 is about 4405.9096677077. The cubic root of 19412040 is about 268.7553133977.

The spelling of 19412040 in words is "nineteen million, four hundred twelve thousand, forty".