19401413 has 4 divisors (see below), whose sum is σ = 20422560. Its totient is φ = 18380268.

The previous prime is 19401407. The next prime is 19401433. The reversal of 19401413 is 31410491.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31410491 = 7 ⋅4487213.

It is a cyclic number.

It is not a de Polignac number, because 19401413 - 2⁸ = 19401157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19401433) 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, 510545 + ... + 510582.

It is an arithmetic number, because the mean of its divisors is an integer number (5105640).

Almost surely, 2^19401413 is an apocalyptic number.

It is an amenable number.

19401413 is a deficient number, since it is larger than the sum of its proper divisors (1021147).

19401413 is a wasteful number, since it uses less digits than its factorization.

19401413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021146.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 19401413 is about 4404.7035087506. The cubic root of 19401413 is about 268.7062616400.

The spelling of 19401413 in words is "nineteen million, four hundred one thousand, four hundred thirteen".