16457472 has 72 divisors (see below), whose sum is σ = 48688080. Its totient is φ = 5483520.

The previous prime is 16457459. The next prime is 16457501. The reversal of 16457472 is 27475461.

16457472 is a `hidden beast` number, since 1 + 645 + 7 + 4 + 7 + 2 = 666.

16457472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5722 + ... + 8102.

Almost surely, 2^16457472 is an apocalyptic number.

16457472 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 16457472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24344040).

16457472 is an abundant number, since it is smaller than the sum of its proper divisors (32230608).

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

16457472 is an equidigital number, since it uses as much as digits as its factorization.

16457472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2386 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 16457472 is about 4056.7809898983. The cubic root of 16457472 is about 254.3632556400.

The spelling of 16457472 in words is "sixteen million, four hundred fifty-seven thousand, four hundred seventy-two".