1428585450 has 24 divisors (see below), whose sum is σ = 3542892288. Its totient is φ = 380956080.

The previous prime is 1428585449. The next prime is 1428585451. The reversal of 1428585450 is 545858241.

It is an interprime number because it is at equal distance from previous prime (1428585449) and next prime (1428585451).

It is not an unprimeable number, because it can be changed into a prime (1428585451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4761802 + ... + 4762101.

It is an arithmetic number, because the mean of its divisors is an integer number (147620512).

Almost surely, 2^1428585450 is an apocalyptic number.

1428585450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428585450 is an abundant number, since it is smaller than the sum of its proper divisors (2114306838).

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

1428585450 is a wasteful number, since it uses less digits than its factorization.

1428585450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9523918 (or 9523913 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 42.

The square root of 1428585450 is about 37796.6327865327. The cubic root of 1428585450 is about 1126.2515651392.

The spelling of 1428585450 in words is "one billion, four hundred twenty-eight million, five hundred eighty-five thousand, four hundred fifty".