1428715652 has 24 divisors (see below), whose sum is σ = 3077234496. Its totient is φ = 565206048.

The previous prime is 1428715637. The next prime is 1428715703. The reversal of 1428715652 is 2565178241.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 1962158 + ... + 1962885.

It is an arithmetic number, because the mean of its divisors is an integer number (128218104).

Almost surely, 2^1428715652 is an apocalyptic number.

It is an amenable number.

1428715652 is an abundant number, since it is smaller than the sum of its proper divisors (1648518844).

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

1428715652 is a wasteful number, since it uses less digits than its factorization.

1428715652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925067 (or 3925065 counting only the distinct ones).

The product of its digits is 134400, while the sum is 41.

The square root of 1428715652 is about 37798.3551493977. The cubic root of 1428715652 is about 1126.2857798121.

The spelling of 1428715652 in words is "one billion, four hundred twenty-eight million, seven hundred fifteen thousand, six hundred fifty-two".