19342081 has 4 divisors (see below), whose sum is σ = 21100464. Its totient is φ = 17583700.

The previous prime is 19342067. The next prime is 19342087. The reversal of 19342081 is 18024391.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19342081 - 2⁷ = 19341953 is a prime.

It is a super-2 number, since 2×19342081² = 748232194821122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19342087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879175 + ... + 879196.

It is an arithmetic number, because the mean of its divisors is an integer number (5275116).

Almost surely, 2^19342081 is an apocalyptic number.

19342081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19342081 is a deficient number, since it is larger than the sum of its proper divisors (1758383).

19342081 is a wasteful number, since it uses less digits than its factorization.

19342081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758382.

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

The square root of 19342081 is about 4397.9632786098. The cubic root of 19342081 is about 268.4320692505.

The spelling of 19342081 in words is "nineteen million, three hundred forty-two thousand, eighty-one".