1381421326 has 8 divisors (see below), whose sum is σ = 2194022160. Its totient is φ = 650080608.

The previous prime is 1381421317. The next prime is 1381421333. The reversal of 1381421326 is 6231241831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20314986 + ... + 20315053.

It is an arithmetic number, because the mean of its divisors is an integer number (274252770).

Almost surely, 2^1381421326 is an apocalyptic number.

1381421326 is a deficient number, since it is larger than the sum of its proper divisors (812600834).

1381421326 is a wasteful number, since it uses less digits than its factorization.

1381421326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40630058.

The product of its digits is 6912, while the sum is 31.

The square root of 1381421326 is about 37167.4767236088. The cubic root of 1381421326 is about 1113.7183759285.

The spelling of 1381421326 in words is "one billion, three hundred eighty-one million, four hundred twenty-one thousand, three hundred twenty-six".