16230778 has 20 divisors (see below), whose sum is σ = 26330490. Its totient is φ = 7494872.

The previous prime is 16230707. The next prime is 16230811. The reversal of 16230778 is 87703261.

It can be written as a sum of positive squares in only one way, i.e., 13712209 + 2518569 = 3703^2 + 1587^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 559668 + ... + 559696.

Almost surely, 2^16230778 is an apocalyptic number.

16230778 is a deficient number, since it is larger than the sum of its proper divisors (10099712).

16230778 is an frugal number, since it uses more digits than its factorization.

16230778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 16230778 is about 4028.7439730020. The cubic root of 16230778 is about 253.1899400113.

The spelling of 16230778 in words is "sixteen million, two hundred thirty thousand, seven hundred seventy-eight".