1428948943 has 8 divisors (see below), whose sum is σ = 1460841408. Its totient is φ = 1397118624.

The previous prime is 1428948931. The next prime is 1428948947. The reversal of 1428948943 is 3498498241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1428948943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428948947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32605 + ... + 62617.

It is an arithmetic number, because the mean of its divisors is an integer number (182605176).

Almost surely, 2^1428948943 is an apocalyptic number.

1428948943 is a deficient number, since it is larger than the sum of its proper divisors (31892465).

1428948943 is a wasteful number, since it uses less digits than its factorization.

1428948943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31073.

The product of its digits is 1990656, while the sum is 52.

The square root of 1428948943 is about 37801.4410175062. The cubic root of 1428948943 is about 1126.3470791652.

The spelling of 1428948943 in words is "one billion, four hundred twenty-eight million, nine hundred forty-eight thousand, nine hundred forty-three".