1428402272 has 96 divisors (see below), whose sum is σ = 3153427200. Its totient is φ = 631411200.

The previous prime is 1428402263. The next prime is 1428402277. The reversal of 1428402272 is 2722048241.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428402277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2263397 + ... + 2264027.

It is an arithmetic number, because the mean of its divisors is an integer number (32848200).

Almost surely, 2^1428402272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428402272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1576713600).

1428402272 is an abundant number, since it is smaller than the sum of its proper divisors (1725024928).

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

1428402272 is a wasteful number, since it uses less digits than its factorization.

1428402272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 1428402272 is about 37794.2095035734. The cubic root of 1428402272 is about 1126.2034258353.

The spelling of 1428402272 in words is "one billion, four hundred twenty-eight million, four hundred two thousand, two hundred seventy-two".