1396815528 has 16 divisors (see below), whose sum is σ = 3492038880. Its totient is φ = 465605168.

The previous prime is 1396815521. The next prime is 1396815529. The reversal of 1396815528 is 8255186931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1396815521) 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, 29100300 + ... + 29100347.

It is an arithmetic number, because the mean of its divisors is an integer number (218252430).

Almost surely, 2^1396815528 is an apocalyptic number.

It is an amenable number.

1396815528 is an abundant number, since it is smaller than the sum of its proper divisors (2095223352).

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

1396815528 is a wasteful number, since it uses less digits than its factorization.

1396815528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58200656 (or 58200652 counting only the distinct ones).

The product of its digits is 518400, while the sum is 48.

The square root of 1396815528 is about 37373.9953443567. The cubic root of 1396815528 is about 1117.8400996777.

The spelling of 1396815528 in words is "one billion, three hundred ninety-six million, eight hundred fifteen thousand, five hundred twenty-eight".