16780630 has 16 divisors (see below), whose sum is σ = 30407904. Its totient is φ = 6667200.

The previous prime is 16780609. The next prime is 16780633. The reversal of 16780630 is 3608761.

It is a junction number, because it is equal to n+sod(n) for n = 16780592 and 16780601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16780633) 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, 4047 + ... + 7066.

It is an arithmetic number, because the mean of its divisors is an integer number (1900494).

Almost surely, 2^16780630 is an apocalyptic number.

16780630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16780630 is a deficient number, since it is larger than the sum of its proper divisors (13627274).

16780630 is a wasteful number, since it uses less digits than its factorization.

16780630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11271.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 16780630 is about 4096.4167268480. The cubic root of 16780630 is about 256.0173633243.

The spelling of 16780630 in words is "sixteen million, seven hundred eighty thousand, six hundred thirty".