1428550404 has 12 divisors (see below), whose sum is σ = 3333284304. Its totient is φ = 476183464.

The previous prime is 1428550373. The next prime is 1428550423. The reversal of 1428550404 is 4040558241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59522922 + ... + 59522945.

It is an arithmetic number, because the mean of its divisors is an integer number (277773692).

Almost surely, 2^1428550404 is an apocalyptic number.

It is an amenable number.

1428550404 is an abundant number, since it is smaller than the sum of its proper divisors (1904733900).

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

1428550404 is a wasteful number, since it uses less digits than its factorization.

1428550404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119045874 (or 119045872 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 1428550404 is about 37796.1691709623. The cubic root of 1428550404 is about 1126.2423553447.

The spelling of 1428550404 in words is "one billion, four hundred twenty-eight million, five hundred fifty thousand, four hundred four".