1381624330 has 32 divisors (see below), whose sum is σ = 2635205760. Its totient is φ = 520084800.

The previous prime is 1381624301. The next prime is 1381624333. The reversal of 1381624330 is 334261831.

It is a junction number, because it is equal to n+sod(n) for n = 1381624292 and 1381624301.

It is not an unprimeable number, because it can be changed into a prime (1381624333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4612 + ... + 52768.

It is an arithmetic number, because the mean of its divisors is an integer number (82350180).

Almost surely, 2^1381624330 is an apocalyptic number.

1381624330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381624330 is a deficient number, since it is larger than the sum of its proper divisors (1253581430).

1381624330 is a wasteful number, since it uses less digits than its factorization.

1381624330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48334.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1381624330 is about 37170.2075592806. The cubic root of 1381624330 is about 1113.7729280064.

The spelling of 1381624330 in words is "one billion, three hundred eighty-one million, six hundred twenty-four thousand, three hundred thirty".