16072290 has 128 divisors (see below), whose sum is σ = 48787200. Its totient is φ = 3732480.

The previous prime is 16072267. The next prime is 16072297. The reversal of 16072290 is 9227061.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16072297) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66570 + ... + 66810.

It is an arithmetic number, because the mean of its divisors is an integer number (381150).

Almost surely, 2^16072290 is an apocalyptic number.

16072290 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 16072290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24393600).

16072290 is an abundant number, since it is smaller than the sum of its proper divisors (32714910).

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

16072290 is a wasteful number, since it uses less digits than its factorization.

16072290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 16072290 is about 4009.0260662660. The cubic root of 16072290 is about 252.3631385880.

The spelling of 16072290 in words is "sixteen million, seventy-two thousand, two hundred ninety".