1040042554 has 4 divisors (see below), whose sum is σ = 1560063834. Its totient is φ = 520021276.

The previous prime is 1040042533. The next prime is 1040042561. The reversal of 1040042554 is 4552400401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4552400401 = 47 ⋅96859583.

It can be written as a sum of positive squares in only one way, i.e., 792704025 + 247338529 = 28155^2 + 15727^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260010637 + ... + 260010640.

Almost surely, 2^1040042554 is an apocalyptic number.

1040042554 is a deficient number, since it is larger than the sum of its proper divisors (520021280).

1040042554 is an equidigital number, since it uses as much as digits as its factorization.

1040042554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520021279.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1040042554 is about 32249.6907582073. The cubic root of 1040042554 is about 1013.1732222167.

Adding to 1040042554 its reverse (4552400401), we get a palindrome (5592442955).

The spelling of 1040042554 in words is "one billion, forty million, forty-two thousand, five hundred fifty-four".