1428179636 has 24 divisors (see below), whose sum is σ = 2698708320. Its totient is φ = 657411552.

The previous prime is 1428179629. The next prime is 1428179651. The reversal of 1428179636 is 6369718241.

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, 16526 + ... + 55941.

It is an arithmetic number, because the mean of its divisors is an integer number (112446180).

Almost surely, 2^1428179636 is an apocalyptic number.

It is an amenable number.

1428179636 is a deficient number, since it is larger than the sum of its proper divisors (1270528684).

1428179636 is a wasteful number, since it uses less digits than its factorization.

1428179636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72863 (or 72861 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 1428179636 is about 37791.2640169656. The cubic root of 1428179636 is about 1126.1449114007.

The spelling of 1428179636 in words is "one billion, four hundred twenty-eight million, one hundred seventy-nine thousand, six hundred thirty-six".