1381432330 has 16 divisors (see below), whose sum is σ = 2499600384. Its totient is φ = 549679120.

The previous prime is 1381432309. The next prime is 1381432337. The reversal of 1381432330 is 332341831.

It is not an unprimeable number, because it can be changed into a prime (1381432337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359722 + ... + 363541.

It is an arithmetic number, because the mean of its divisors is an integer number (156225024).

Almost surely, 2^1381432330 is an apocalyptic number.

1381432330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381432330 is a deficient number, since it is larger than the sum of its proper divisors (1118168054).

1381432330 is a wasteful number, since it uses less digits than its factorization.

1381432330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723461.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1381432330 is about 37167.6247559620. The cubic root of 1381432330 is about 1113.7213331061.

The spelling of 1381432330 in words is "one billion, three hundred eighty-one million, four hundred thirty-two thousand, three hundred thirty".