16223470 has 32 divisors (see below), whose sum is σ = 30935520. Its totient is φ = 6115200.

The previous prime is 16223461. The next prime is 16223479. The reversal of 16223470 is 7432261.

It is an interprime number because it is at equal distance from previous prime (16223461) and next prime (16223479).

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 15 ways as a sum of consecutive naturals, for example, 11820 + ... + 13120.

It is an arithmetic number, because the mean of its divisors is an integer number (966735).

Almost surely, 2^16223470 is an apocalyptic number.

16223470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16223470 is a deficient number, since it is larger than the sum of its proper divisors (14712050).

16223470 is a wasteful number, since it uses less digits than its factorization.

16223470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 16223470 is about 4027.8368884551. The cubic root of 16223470 is about 253.1519342370.

It can be divided in two parts, 162 and 23470, that added together give a palindrome (23632).

The spelling of 16223470 in words is "sixteen million, two hundred twenty-three thousand, four hundred seventy".