16761330 has 40 divisors (see below), whose sum is σ = 45071532. Its totient is φ = 4469472.

The previous prime is 16761317. The next prime is 16761331. The reversal of 16761330 is 3316761.

16761330 is a `hidden beast` number, since 16 + 7 + 613 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16329681 + 431649 = 4041^2 + 657^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 16761294 and 16761303.

It is not an unprimeable number, because it can be changed into a prime (16761331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9537 + ... + 11156.

Almost surely, 2^16761330 is an apocalyptic number.

16761330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16761330 is an abundant number, since it is smaller than the sum of its proper divisors (28310202).

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

16761330 is a wasteful number, since it uses less digits than its factorization.

16761330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20712 (or 20703 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 16761330 is about 4094.0603317489. The cubic root of 16761330 is about 255.9191741095.

The spelling of 16761330 in words is "sixteen million, seven hundred sixty-one thousand, three hundred thirty".