1520328 has 16 divisors (see below), whose sum is σ = 3800880. Its totient is φ = 506768.

The previous prime is 1520291. The next prime is 1520329. The reversal of 1520328 is 8230251.

It is a super-2 number, since 2×1520328² = 4622794455168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1520329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31650 + ... + 31697.

It is an arithmetic number, because the mean of its divisors is an integer number (237555).

2^1520328 is an apocalyptic number.

It is an amenable number.

1520328 is an abundant number, since it is smaller than the sum of its proper divisors (2280552).

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

1520328 is a wasteful number, since it uses less digits than its factorization.

1520328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63356 (or 63352 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1520328 is about 1233.0158149837. The cubic root of 1520328 is about 114.9862113272.

Adding to 1520328 its reverse (8230251), we get a palindrome (9750579).

The spelling of 1520328 in words is "one million, five hundred twenty thousand, three hundred twenty-eight".