19142830 has 32 divisors (see below), whose sum is σ = 40190400. Its totient is φ = 6562080.

The previous prime is 19142821. The next prime is 19142839. The reversal of 19142830 is 3824191.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19142821) and next prime (19142839).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19142839) 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, 640 + ... + 6220.

It is an arithmetic number, because the mean of its divisors is an integer number (1255950).

Almost surely, 2^19142830 is an apocalyptic number.

19142830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19142830 is an abundant number, since it is smaller than the sum of its proper divisors (21047570).

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

19142830 is an equidigital number, since it uses as much as digits as its factorization.

19142830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5609 (or 5595 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 19142830 is about 4375.2519927428. The cubic root of 19142830 is about 267.5071416267.

The spelling of 19142830 in words is "nineteen million, one hundred forty-two thousand, eight hundred thirty".