1040432242 has 4 divisors (see below), whose sum is σ = 1560648366. Its totient is φ = 520216120.

The previous prime is 1040432231. The next prime is 1040432243. The reversal of 1040432242 is 2422340401.

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: 2422340401 = 13 ⋅186333877.

It can be written as a sum of positive squares in only one way, i.e., 1027907721 + 12524521 = 32061^2 + 3539^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1040432243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260108059 + ... + 260108062.

Almost surely, 2^1040432242 is an apocalyptic number.

1040432242 is a deficient number, since it is larger than the sum of its proper divisors (520216124).

1040432242 is an equidigital number, since it uses as much as digits as its factorization.

1040432242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520216123.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1040432242 is about 32255.7319247293. The cubic root of 1040432242 is about 1013.2997465736.

Adding to 1040432242 its reverse (2422340401), we get a palindrome (3462772643).

The spelling of 1040432242 in words is "one billion, forty million, four hundred thirty-two thousand, two hundred forty-two".