1528340412 has 24 divisors (see below), whose sum is σ = 3573463936. Its totient is φ = 508398768.

The previous prime is 1528340369. The next prime is 1528340423. The reversal of 1528340412 is 2140438251.

It is a self number, because there is not a number n which added to its sum of digits gives 1528340412.

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, 124918 + ... + 136605.

Almost surely, 2^1528340412 is an apocalyptic number.

1528340412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1528340412 is an abundant number, since it is smaller than the sum of its proper divisors (2045123524).

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

1528340412 is a wasteful number, since it uses less digits than its factorization.

1528340412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262017 (or 262015 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1528340412 is about 39093.9945771726. The cubic root of 1528340412 is about 1151.8785709442.

Adding to 1528340412 its reverse (2140438251), we get a palindrome (3668778663).

The spelling of 1528340412 in words is "one billion, five hundred twenty-eight million, three hundred forty thousand, four hundred twelve".