1381614650 has 96 divisors (see below), whose sum is σ = 2962779120. Its totient is φ = 474808320.

The previous prime is 1381614649. The next prime is 1381614677. The reversal of 1381614650 is 564161831.

It can be written as a sum of positive squares in 24 ways, for example, as 3052009 + 1378562641 = 1747^2 + 37129^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1381614650.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1071206 + ... + 1072494.

Almost surely, 2^1381614650 is an apocalyptic number.

1381614650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381614650 is an abundant number, since it is smaller than the sum of its proper divisors (1581164470).

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

1381614650 is a wasteful number, since it uses less digits than its factorization.

1381614650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1381614650 is about 37170.0773472426. The cubic root of 1381614650 is about 1113.7703268779.

The spelling of 1381614650 in words is "one billion, three hundred eighty-one million, six hundred fourteen thousand, six hundred fifty".