16223478 has 16 divisors (see below), whose sum is σ = 33494016. Its totient is φ = 5233320.

The previous prime is 16223461. The next prime is 16223479. The reversal of 16223478 is 87432261.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16223479) 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, 43426 + ... + 43797.

It is an arithmetic number, because the mean of its divisors is an integer number (2093376).

Almost surely, 2^16223478 is an apocalyptic number.

16223478 is an abundant number, since it is smaller than the sum of its proper divisors (17270538).

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

16223478 is a wasteful number, since it uses less digits than its factorization.

16223478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87259.

The product of its digits is 16128, while the sum is 33.

The square root of 16223478 is about 4027.8378815439. The cubic root of 16223478 is about 253.1519758478.

The spelling of 16223478 in words is "sixteen million, two hundred twenty-three thousand, four hundred seventy-eight".