1428005401 has 8 divisors (see below), whose sum is σ = 1503511520. Its totient is φ = 1352534112.

The previous prime is 1428005387. The next prime is 1428005407. The reversal of 1428005401 is 1045008241.

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

It is a cyclic number.

It is not a de Polignac number, because 1428005401 - 2²⁷ = 1293787673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428005407) 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, 147166 + ... + 156568.

It is an arithmetic number, because the mean of its divisors is an integer number (187938940).

Almost surely, 2^1428005401 is an apocalyptic number.

It is an amenable number.

1428005401 is a deficient number, since it is larger than the sum of its proper divisors (75506119).

1428005401 is an equidigital number, since it uses as much as digits as its factorization.

1428005401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17415.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 1428005401 is about 37788.9587181229. The cubic root of 1428005401 is about 1126.0991137449.

The spelling of 1428005401 in words is "one billion, four hundred twenty-eight million, five thousand, four hundred one".