1389048264 has 224 divisors, whose sum is σ = 4155148800. Its totient is φ = 434367360.

The previous prime is 1389048259. The next prime is 1389048299. The reversal of 1389048264 is 4628409831.

It is a happy number.

1389048264 is a `hidden beast` number, since 1 + 389 + 0 + 4 + 8 + 264 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 7272409 + ... + 7272599.

Almost surely, 2^1389048264 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 1389048264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2077574400).

1389048264 is an abundant number, since it is smaller than the sum of its proper divisors (2766100536).

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

1389048264 is a wasteful number, since it uses less digits than its factorization.

1389048264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1389048264 is about 37269.9378051534. The cubic root of 1389048264 is about 1115.7642582183.

The spelling of 1389048264 in words is "one billion, three hundred eighty-nine million, forty-eight thousand, two hundred sixty-four".