15320970 has 96 divisors (see below), whose sum is σ = 46230912. Its totient is φ = 3447936.

The previous prime is 15320953. The next prime is 15320971. The reversal of 15320970 is 7902351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15320971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52144 + ... + 52436.

It is an arithmetic number, because the mean of its divisors is an integer number (481572).

Almost surely, 2^15320970 is an apocalyptic number.

15320970 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 15320970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23115456).

15320970 is an abundant number, since it is smaller than the sum of its proper divisors (30909942).

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

15320970 is a wasteful number, since it uses less digits than its factorization.

15320970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 15320970 is about 3914.2010679065. The cubic root of 15320970 is about 248.3678745201.

It can be divided in two parts, 15320 and 970, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 15320970 in words is "fifteen million, three hundred twenty thousand, nine hundred seventy".