1042440301525 has 24 divisors (see below), whose sum is σ = 1484710428800. Its totient is φ = 711224141760.

The previous prime is 1042440301493. The next prime is 1042440301543. The reversal of 1042440301525 is 5251030442401.

It is not a de Polignac number, because 1042440301525 - 2⁵ = 1042440301493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14932014 + ... + 15001663.

Almost surely, 2^{1042440301525} is an apocalyptic number.

It is an amenable number.

1042440301525 is a deficient number, since it is larger than the sum of its proper divisors (442270127275).

1042440301525 is a wasteful number, since it uses less digits than its factorization.

1042440301525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29933893 (or 29933888 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 1042440301525 its reverse (5251030442401), we get a palindrome (6293470743926).

The spelling of 1042440301525 in words is "one trillion, forty-two billion, four hundred forty million, three hundred one thousand, five hundred twenty-five".