1040542312 has 8 divisors (see below), whose sum is σ = 1951016850. Its totient is φ = 520271152.

The previous prime is 1040542297. The next prime is 1040542319. The reversal of 1040542312 is 2132450401.

It can be written as a sum of positive squares in only one way, i.e., 817159396 + 223382916 = 28586^2 + 14946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1040542319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65033887 + ... + 65033902.

Almost surely, 2^1040542312 is an apocalyptic number.

It is an amenable number.

1040542312 is a deficient number, since it is larger than the sum of its proper divisors (910474538).

1040542312 is a wasteful number, since it uses less digits than its factorization.

1040542312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130067795 (or 130067791 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1040542312 is about 32257.4380879821. The cubic root of 1040542312 is about 1013.3354785081.

Adding to 1040542312 its reverse (2132450401), we get a palindrome (3172992713).

The spelling of 1040542312 in words is "one billion, forty million, five hundred forty-two thousand, three hundred twelve".