1084426645 has 4 divisors (see below), whose sum is σ = 1301311980. Its totient is φ = 867541312.

The previous prime is 1084426639. The next prime is 1084426649. The reversal of 1084426645 is 5466244801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 268238884 + 816187761 = 16378^2 + 28569^2 .

It is a cyclic number.

It is not a de Polignac number, because 1084426645 - 2⁵ = 1084426613 is a prime.

It is a super-2 number, since 2×1084426645² = 2351962296771912050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1084426598 and 1084426607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1084426649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108442660 + ... + 108442669.

It is an arithmetic number, because the mean of its divisors is an integer number (325327995).

Almost surely, 2^1084426645 is an apocalyptic number.

It is an amenable number.

1084426645 is a deficient number, since it is larger than the sum of its proper divisors (216885335).

1084426645 is an equidigital number, since it uses as much as digits as its factorization.

1084426645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216885334.

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 1084426645 is about 32930.6338384186. The cubic root of 1084426645 is about 1027.3854084136.

The spelling of 1084426645 in words is "one billion, eighty-four million, four hundred twenty-six thousand, six hundred forty-five".