16346772 has 60 divisors (see below), whose sum is σ = 46032756. Its totient is φ = 5028480.

The previous prime is 16346761. The next prime is 16346773. The reversal of 16346772 is 27764361.

It can be written as a sum of positive squares in 2 ways, for example, as 6081156 + 10265616 = 2466^2 + 3204^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16346773) 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, 2272 + ... + 6152.

Almost surely, 2^16346772 is an apocalyptic number.

16346772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16346772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23016378).

16346772 is an abundant number, since it is smaller than the sum of its proper divisors (29685984).

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

16346772 is a wasteful number, since it uses less digits than its factorization.

16346772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910 (or 3899 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 16346772 is about 4043.1141462986. The cubic root of 16346772 is about 253.7916533982.

The spelling of 16346772 in words is "sixteen million, three hundred forty-six thousand, seven hundred seventy-two".