19394141 has 8 divisors (see below), whose sum is σ = 20920704. Its totient is φ = 17872560.

The previous prime is 19394119. The next prime is 19394143. The reversal of 19394141 is 14149391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19394141 is a prime.

It is a super-2 number, since 2×19394141² = 752265410255762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19394098 and 19394107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19394143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12680 + ... + 14126.

It is an arithmetic number, because the mean of its divisors is an integer number (2615088).

Almost surely, 2^19394141 is an apocalyptic number.

It is an amenable number.

19394141 is a deficient number, since it is larger than the sum of its proper divisors (1526563).

19394141 is a wasteful number, since it uses less digits than its factorization.

19394141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491.

The product of its digits is 3888, while the sum is 32.

The square root of 19394141 is about 4403.8779501707. The cubic root of 19394141 is about 268.6726854580.

The spelling of 19394141 in words is "nineteen million, three hundred ninety-four thousand, one hundred forty-one".