1534021235040 has 192 divisors, whose sum is σ = 5524673817600. Its totient is φ = 350493911040.

The previous prime is 1534021235017. The next prime is 1534021235053. The reversal of 1534021235040 is 405321204351.

It is a super-2 number, since 2×1534021235040² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1534021234989 and 1534021235007.

It is a congruent number.

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, 8475085 + ... + 8654195.

It is an arithmetic number, because the mean of its divisors is an integer number (28774342800).

Almost surely, 2^{1534021235040} is an apocalyptic number.

1534021235040 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 1534021235040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2762336908800).

1534021235040 is an abundant number, since it is smaller than the sum of its proper divisors (3990652582560).

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

1534021235040 is a wasteful number, since it uses less digits than its factorization.

1534021235040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181685 (or 181677 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1534021235040 its reverse (405321204351), we get a palindrome (1939342439391).

The spelling of 1534021235040 in words is "one trillion, five hundred thirty-four billion, twenty-one million, two hundred thirty-five thousand, forty".