1081434405 has 16 divisors (see below), whose sum is σ = 1735761024. Its totient is φ = 574943040.

The previous prime is 1081434383. The next prime is 1081434427. The reversal of 1081434405 is 5044341801.

It is an interprime number because it is at equal distance from previous prime (1081434383) and next prime (1081434427).

It is not a de Polignac number, because 1081434405 - 2⁵ = 1081434373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108961 + ... + 118470.

It is an arithmetic number, because the mean of its divisors is an integer number (108485064).

Almost surely, 2^1081434405 is an apocalyptic number.

1081434405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1081434405 is a deficient number, since it is larger than the sum of its proper divisors (654326619).

1081434405 is a wasteful number, since it uses less digits than its factorization.

1081434405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227756.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1081434405 is about 32885.1699858766. The cubic root of 1081434405 is about 1026.4395889230.

The spelling of 1081434405 in words is "one billion, eighty-one million, four hundred thirty-four thousand, four hundred five".