1040015445 has 64 divisors (see below), whose sum is σ = 2042880000. Its totient is φ = 450370368.

The previous prime is 1040015401. The next prime is 1040015491. The reversal of 1040015445 is 5445100401.

It is a happy number.

It is not a de Polignac number, because 1040015445 - 2¹⁶ = 1039949909 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92436 + ... + 103074.

It is an arithmetic number, because the mean of its divisors is an integer number (31920000).

Almost surely, 2^1040015445 is an apocalyptic number.

1040015445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1040015445 is a deficient number, since it is larger than the sum of its proper divisors (1002864555).

1040015445 is a wasteful number, since it uses less digits than its factorization.

1040015445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10687 (or 10673 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1040015445 is about 32249.2704568646. The cubic root of 1040015445 is about 1013.1644192591.

Adding to 1040015445 its reverse (5445100401), we get a palindrome (6485115846).

The spelling of 1040015445 in words is "one billion, forty million, fifteen thousand, four hundred forty-five".