1025401230040 has 64 divisors (see below), whose sum is σ = 2519657694720. Its totient is φ = 372463728000.

The previous prime is 1025401230037. The next prime is 1025401230107. The reversal of 1025401230040 is 400321045201.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1025401229993 and 1025401230020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878226 + ... + 1679905.

It is an arithmetic number, because the mean of its divisors is an integer number (39369651480).

Almost surely, 2^{1025401230040} is an apocalyptic number.

1025401230040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025401230040 is an abundant number, since it is smaller than the sum of its proper divisors (1494256464680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025401230040 is a wasteful number, since it uses less digits than its factorization.

1025401230040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559064 (or 2559060 counting only the distinct ones).

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

Adding to 1025401230040 its reverse (400321045201), we get a palindrome (1425722275241).

The spelling of 1025401230040 in words is "one trillion, twenty-five billion, four hundred one million, two hundred thirty thousand, forty".