15082220 has 12 divisors (see below), whose sum is σ = 31672704. Its totient is φ = 6032880.

The previous prime is 15082201. The next prime is 15082231. The reversal of 15082220 is 2228051.

15082220 is digitally balanced in base 2, because in such base 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 (20), and also a Moran number because the ratio is a prime number: 754111 = 15082220 / (1 + 5 + 0 + 8 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 15082192 and 15082201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377036 + ... + 377075.

It is an arithmetic number, because the mean of its divisors is an integer number (2639392).

Almost surely, 2^15082220 is an apocalyptic number.

15082220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15082220 is an abundant number, since it is smaller than the sum of its proper divisors (16590484).

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

15082220 is a wasteful number, since it uses less digits than its factorization.

15082220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754120 (or 754118 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 15082220 is about 3883.5833968128. The cubic root of 15082220 is about 247.0709909752.

The spelling of 15082220 in words is "fifteen million, eighty-two thousand, two hundred twenty".