1040435551 has 4 divisors (see below), whose sum is σ = 1046665872. Its totient is φ = 1034205232.

The previous prime is 1040435549. The next prime is 1040435647. The reversal of 1040435551 is 1555340401.

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

It is a cyclic number.

It is not a de Polignac number, because 1040435551 - 2¹ = 1040435549 is a prime.

It is a super-2 number, since 2×1040435551² = 2165012271569347202, 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 (1040435351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3114910 + ... + 3115243.

It is an arithmetic number, because the mean of its divisors is an integer number (261666468).

Almost surely, 2^1040435551 is an apocalyptic number.

1040435551 is a deficient number, since it is larger than the sum of its proper divisors (6230321).

1040435551 is an equidigital number, since it uses as much as digits as its factorization.

1040435551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6230320.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1040435551 is about 32255.7832178975. The cubic root of 1040435551 is about 1013.3008208083.

Adding to 1040435551 its reverse (1555340401), we get a palindrome (2595775952).

The spelling of 1040435551 in words is "one billion, forty million, four hundred thirty-five thousand, five hundred fifty-one".