16169428 has 24 divisors (see below), whose sum is σ = 31056480. Its totient is φ = 7305120.

The previous prime is 16169423. The next prime is 16169429. The reversal of 16169428 is 82496161.

It is a happy number.

It is a super-2 number, since 2×16169428² = 522900803694368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16169423) 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, 6850 + ... + 8902.

It is an arithmetic number, because the mean of its divisors is an integer number (1294020).

Almost surely, 2^16169428 is an apocalyptic number.

It is an amenable number.

16169428 is a deficient number, since it is larger than the sum of its proper divisors (14887052).

16169428 is a wasteful number, since it uses less digits than its factorization.

16169428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2245 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 16169428 is about 4021.1227287911. The cubic root of 16169428 is about 252.8705300789.

The spelling of 16169428 in words is "sixteen million, one hundred sixty-nine thousand, four hundred twenty-eight".