16542630 has 80 divisors (see below), whose sum is σ = 47933424. Its totient is φ = 4069440.

The previous prime is 16542607. The next prime is 16542641. The reversal of 16542630 is 3624561.

16542630 is a `hidden beast` number, since 1 + 654 + 2 + 6 + 3 + 0 = 666.

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 = 16542594 and 16542603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9745 + ... + 11315.

Almost surely, 2^16542630 is an apocalyptic number.

16542630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16542630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23966712).

16542630 is an abundant number, since it is smaller than the sum of its proper divisors (31390794).

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

16542630 is a wasteful number, since it uses less digits than its factorization.

16542630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 16542630 is about 4067.2632076127. The cubic root of 16542630 is about 254.8012291828.

The spelling of 16542630 in words is "sixteen million, five hundred forty-two thousand, six hundred thirty".