1234515425440 has 192 divisors, whose sum is σ = 3285855175680. Its totient is φ = 434230272000.

The previous prime is 1234515425389. The next prime is 1234515425551. The reversal of 1234515425440 is 445245154321.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1234515425393 and 1234515425402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161984830 + ... + 161992450.

It is an arithmetic number, because the mean of its divisors is an integer number (17113829040).

Almost surely, 2^{1234515425440} is an apocalyptic number.

1234515425440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234515425440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642927587840).

1234515425440 is an abundant number, since it is smaller than the sum of its proper divisors (2051339750240).

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

1234515425440 is a wasteful number, since it uses less digits than its factorization.

1234515425440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10647 (or 10639 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

The spelling of 1234515425440 in words is "one trillion, two hundred thirty-four billion, five hundred fifteen million, four hundred twenty-five thousand, four hundred forty".