1428154442 has 48 divisors (see below), whose sum is σ = 2589716448. Its totient is φ = 585224640.

The previous prime is 1428154393. The next prime is 1428154447. The reversal of 1428154442 is 2444518241.

It is a super-2 number, since 2×1428154442² = 4079250220408662728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1428154447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155408 + ... + 164340.

It is an arithmetic number, because the mean of its divisors is an integer number (53952426).

Almost surely, 2^1428154442 is an apocalyptic number.

1428154442 is a deficient number, since it is larger than the sum of its proper divisors (1161562006).

1428154442 is a wasteful number, since it uses less digits than its factorization.

1428154442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9015 (or 9002 counting only the distinct ones).

The product of its digits is 40960, while the sum is 35.

The square root of 1428154442 is about 37790.9306844910. The cubic root of 1428154442 is about 1126.1382893902.

The spelling of 1428154442 in words is "one billion, four hundred twenty-eight million, one hundred fifty-four thousand, four hundred forty-two".