15672720 has 160 divisors (see below), whose sum is σ = 58567680. Its totient is φ = 3386880.

The previous prime is 15672697. The next prime is 15672733. The reversal of 15672720 is 2727651.

15672720 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 31675 + ... + 32165.

It is an arithmetic number, because the mean of its divisors is an integer number (366048).

Almost surely, 2^15672720 is an apocalyptic number.

15672720 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 15672720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29283840).

15672720 is an abundant number, since it is smaller than the sum of its proper divisors (42894960).

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

15672720 is a wasteful number, since it uses less digits than its factorization.

15672720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 15672720 is about 3958.8786291070. The cubic root of 15672720 is about 250.2542480108.

The spelling of 15672720 in words is "fifteen million, six hundred seventy-two thousand, seven hundred twenty".