1381858430 has 16 divisors (see below), whose sum is σ = 2633659920. Its totient is φ = 520228992.

The previous prime is 1381858427. The next prime is 1381858463. The reversal of 1381858430 is 348581831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4064120 + ... + 4064459.

It is an arithmetic number, because the mean of its divisors is an integer number (164603745).

Almost surely, 2^1381858430 is an apocalyptic number.

1381858430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381858430 is a deficient number, since it is larger than the sum of its proper divisors (1251801490).

1381858430 is a wasteful number, since it uses less digits than its factorization.

1381858430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8128603.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1381858430 is about 37173.3564532448. The cubic root of 1381858430 is about 1113.8358296968.

The spelling of 1381858430 in words is "one billion, three hundred eighty-one million, eight hundred fifty-eight thousand, four hundred thirty".