1081423438 has 8 divisors (see below), whose sum is σ = 1623987432. Its totient is φ = 540094296.

The previous prime is 1081423391. The next prime is 1081423439. The reversal of 1081423438 is 8343241801.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081423439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306520 + ... + 310027.

It is an arithmetic number, because the mean of its divisors is an integer number (202998429).

Almost surely, 2^1081423438 is an apocalyptic number.

1081423438 is a deficient number, since it is larger than the sum of its proper divisors (542563994).

1081423438 is an equidigital number, since it uses as much as digits as its factorization.

1081423438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617426.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 1081423438 is about 32885.0032385585. The cubic root of 1081423438 is about 1026.4361191483.

The spelling of 1081423438 in words is "one billion, eighty-one million, four hundred twenty-three thousand, four hundred thirty-eight".