1090454039 has 4 divisors (see below), whose sum is σ = 1090566456. Its totient is φ = 1090341624.

The previous prime is 1090454021. The next prime is 1090454059. The reversal of 1090454039 is 9304540901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9304540901 = 19 ⋅489712679.

It is a cyclic number.

It is not a de Polignac number, because 1090454039 - 2⁸ = 1090453783 is a prime.

It is a super-2 number, since 2×1090454039² = 2378180022342827042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090454009) 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, 40124 + ... + 61569.

It is an arithmetic number, because the mean of its divisors is an integer number (272641614).

Almost surely, 2^1090454039 is an apocalyptic number.

1090454039 is a deficient number, since it is larger than the sum of its proper divisors (112417).

1090454039 is a wasteful number, since it uses less digits than its factorization.

1090454039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112416.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1090454039 is about 33022.0235449011. The cubic root of 1090454039 is about 1029.2853430091.

The spelling of 1090454039 in words is "one billion, ninety million, four hundred fifty-four thousand, thirty-nine".