16770720 has 48 divisors (see below), whose sum is σ = 52829280. Its totient is φ = 4472064.

The previous prime is 16770709. The next prime is 16770727. The reversal of 16770720 is 2707761.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (16770727) 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, 16990 + ... + 17949.

It is an arithmetic number, because the mean of its divisors is an integer number (1100610).

Almost surely, 2^16770720 is an apocalyptic number.

16770720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16770720 is an abundant number, since it is smaller than the sum of its proper divisors (36058560).

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

16770720 is a wasteful number, since it uses less digits than its factorization.

16770720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34957 (or 34949 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 16770720 is about 4095.2069544774. The cubic root of 16770720 is about 255.9669553702.

The spelling of 16770720 in words is "sixteen million, seven hundred seventy thousand, seven hundred twenty".