16420413 has 8 divisors (see below), whose sum is σ = 22845888. Its totient is φ = 10470944.

The previous prime is 16420403. The next prime is 16420423. The reversal of 16420413 is 31402461.

It is an interprime number because it is at equal distance from previous prime (16420403) and next prime (16420423).

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

It is a cyclic number.

It is not a de Polignac number, because 16420413 - 2²¹ = 14323261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16420413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16420403) 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, 118920 + ... + 119057.

It is an arithmetic number, because the mean of its divisors is an integer number (2855736).

Almost surely, 2^16420413 is an apocalyptic number.

It is an amenable number.

16420413 is a deficient number, since it is larger than the sum of its proper divisors (6425475).

16420413 is a wasteful number, since it uses less digits than its factorization.

16420413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238003.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 16420413 is about 4052.2108780270. The cubic root of 16420413 is about 254.1721867594.

Adding to 16420413 its reverse (31402461), we get a palindrome (47822874).

The spelling of 16420413 in words is "sixteen million, four hundred twenty thousand, four hundred thirteen".