1384995620 has 12 divisors (see below), whose sum is σ = 2908490844. Its totient is φ = 553998240.

The previous prime is 1384995613. The next prime is 1384995631. The reversal of 1384995620 is 265994831.

It can be written as a sum of positive squares in 2 ways, for example, as 401922304 + 983073316 = 20048^2 + 31354^2 .

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, 34624871 + ... + 34624910.

It is an arithmetic number, because the mean of its divisors is an integer number (242374237).

Almost surely, 2^1384995620 is an apocalyptic number.

1384995620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1384995620 is an abundant number, since it is smaller than the sum of its proper divisors (1523495224).

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

1384995620 is a wasteful number, since it uses less digits than its factorization.

1384995620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69249790 (or 69249788 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 1384995620 is about 37215.5292855012. The cubic root of 1384995620 is about 1114.6780948513.

The spelling of 1384995620 in words is "one billion, three hundred eighty-four million, nine hundred ninety-five thousand, six hundred twenty".