16473720 has 64 divisors (see below), whose sum is σ = 49921920. Its totient is φ = 4348544.

The previous prime is 16473719. The next prime is 16473733. The reversal of 16473720 is 2737461.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12199 + ... + 13481.

It is an arithmetic number, because the mean of its divisors is an integer number (780030).

Almost surely, 2^16473720 is an apocalyptic number.

16473720 is a gapful number since it is divisible by the number (10) 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 16473720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24960960).

16473720 is an abundant number, since it is smaller than the sum of its proper divisors (33448200).

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

16473720 is a wasteful number, since it uses less digits than its factorization.

16473720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404 (or 1400 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 16473720 is about 4058.7830688520. The cubic root of 16473720 is about 254.4469366741.

The spelling of 16473720 in words is "sixteen million, four hundred seventy-three thousand, seven hundred twenty".