19004412 has 48 divisors (see below), whose sum is σ = 50948352. Its totient is φ = 5400960.

The previous prime is 19004399. The next prime is 19004413. The reversal of 19004412 is 21440091.

It is a super-2 number, since 2×19004412² = 722335350931488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19004413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19087 + ... + 20057.

It is an arithmetic number, because the mean of its divisors is an integer number (1061424).

Almost surely, 2^19004412 is an apocalyptic number.

19004412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19004412 is an abundant number, since it is smaller than the sum of its proper divisors (31943940).

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

19004412 is a wasteful number, since it uses less digits than its factorization.

19004412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1216 counting only the distinct ones).

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

The square root of 19004412 is about 4359.4050052731. The cubic root of 19004412 is about 266.8608176387.

The spelling of 19004412 in words is "nineteen million, four thousand, four hundred twelve".