16770402 has 48 divisors (see below), whose sum is σ = 41120352. Its totient is φ = 5080320.

The previous prime is 16770401. The next prime is 16770409. The reversal of 16770402 is 20407761.

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

It is not an unprimeable number, because it can be changed into a prime (16770401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3778 + ... + 6914.

It is an arithmetic number, because the mean of its divisors is an integer number (856674).

Almost surely, 2^16770402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16770402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20560176).

16770402 is an abundant number, since it is smaller than the sum of its proper divisors (24349950).

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

16770402 is a wasteful number, since it uses less digits than its factorization.

16770402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165 (or 3153 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 16770402 is about 4095.1681284167. The cubic root of 16770402 is about 255.9653375107.

16770402 divided by its sum of digits (27) gives a palindrome (621126).

The spelling of 16770402 in words is "sixteen million, seven hundred seventy thousand, four hundred two".