1428473901 has 8 divisors (see below), whose sum is σ = 1915155424. Its totient is φ = 947054160.

The previous prime is 1428473899. The next prime is 1428473923. The reversal of 1428473901 is 1093748241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1428473901 - 2¹ = 1428473899 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428473901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428473801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314811 + ... + 1315896.

It is an arithmetic number, because the mean of its divisors is an integer number (239394428).

Almost surely, 2^1428473901 is an apocalyptic number.

It is an amenable number.

1428473901 is a deficient number, since it is larger than the sum of its proper divisors (486681523).

1428473901 is a wasteful number, since it uses less digits than its factorization.

1428473901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630891.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1428473901 is about 37795.1571104024. The cubic root of 1428473901 is about 1126.2222504755. Note that the first 4 decimals are identical.

The spelling of 1428473901 in words is "one billion, four hundred twenty-eight million, four hundred seventy-three thousand, nine hundred one".