1385923734 has 24 divisors (see below), whose sum is σ = 3233822592. Its totient is φ = 426438000.

The previous prime is 1385923723. The next prime is 1385923741. The reversal of 1385923734 is 4373295831.

1385923734 is a `hidden beast` number, since 1 + 385 + 9 + 237 + 34 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1385923734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2961142 + ... + 2961609.

It is an arithmetic number, because the mean of its divisors is an integer number (134742608).

Almost surely, 2^1385923734 is an apocalyptic number.

1385923734 is an abundant number, since it is smaller than the sum of its proper divisors (1847898858).

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

1385923734 is a wasteful number, since it uses less digits than its factorization.

1385923734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922772 (or 5922769 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 1385923734 is about 37227.9966423121. The cubic root of 1385923734 is about 1114.9270288132.

The spelling of 1385923734 in words is "one billion, three hundred eighty-five million, nine hundred twenty-three thousand, seven hundred thirty-four".