1389574284 has 24 divisors (see below), whose sum is σ = 3705531648. Its totient is φ = 397021200.

The previous prime is 1389574273. The next prime is 1389574289. The reversal of 1389574284 is 4824759831.

It is a happy number.

It is a super-2 number, since 2×1389574284² = 3861833381508225312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1389574289) 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, 8271192 + ... + 8271359.

It is an arithmetic number, because the mean of its divisors is an integer number (154397152).

Almost surely, 2^1389574284 is an apocalyptic number.

1389574284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1389574284 is an abundant number, since it is smaller than the sum of its proper divisors (2315957364).

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

1389574284 is a wasteful number, since it uses less digits than its factorization.

1389574284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16542565 (or 16542563 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 1389574284 is about 37276.9940311716. The cubic root of 1389574284 is about 1115.9050837172.

The spelling of 1389574284 in words is "one billion, three hundred eighty-nine million, five hundred seventy-four thousand, two hundred eighty-four".