1386121032 has 32 divisors (see below), whose sum is σ = 3850336800. Its totient is φ = 462040272.

The previous prime is 1386120971. The next prime is 1386121049. The reversal of 1386121032 is 2301216831.

It is a happy number.

1386121032 is a `hidden beast` number, since 1 + 3 + 8 + 612 + 10 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1386120987 and 1386121005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3208398 + ... + 3208829.

It is an arithmetic number, because the mean of its divisors is an integer number (120323025).

Almost surely, 2^1386121032 is an apocalyptic number.

1386121032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1386121032 is an abundant number, since it is smaller than the sum of its proper divisors (2464215768).

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

1386121032 is a wasteful number, since it uses less digits than its factorization.

1386121032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6417242 (or 6417232 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1386121032 is about 37230.6464085705. The cubic root of 1386121032 is about 1114.9799327429.

Adding to 1386121032 its reverse (2301216831), we get a palindrome (3687337863).

The spelling of 1386121032 in words is "one billion, three hundred eighty-six million, one hundred twenty-one thousand, thirty-two".