19120452 has 72 divisors (see below), whose sum is σ = 50831424. Its totient is φ = 5550336.

The previous prime is 19120447. The next prime is 19120457. The reversal of 19120452 is 25402191.

It is an interprime number because it is at equal distance from previous prime (19120447) and next prime (19120457).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19120457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261888 + ... + 261960.

It is an arithmetic number, because the mean of its divisors is an integer number (705992).

Almost surely, 2^19120452 is an apocalyptic number.

19120452 is a gapful number since it is divisible by the number (12) 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 19120452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25415712).

19120452 is an abundant number, since it is smaller than the sum of its proper divisors (31710972).

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

19120452 is a wasteful number, since it uses less digits than its factorization.

19120452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 19120452 is about 4372.6939065066. The cubic root of 19120452 is about 267.4028622179.

The spelling of 19120452 in words is "nineteen million, one hundred twenty thousand, four hundred fifty-two".