2045401340532 has 96 divisors (see below), whose sum is σ = 5403220663680. Its totient is φ = 596533217280.

The previous prime is 2045401340531. The next prime is 2045401340557. The reversal of 2045401340532 is 2350431045402.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2045401340493 and 2045401340502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045401340531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344608 + ... + 2051720.

It is an arithmetic number, because the mean of its divisors is an integer number (56283548580).

Almost surely, 2^{2045401340532} is an apocalyptic number.

2045401340532 is a gapful number since it is divisible by the number (22) 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 2045401340532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2701610331840).

2045401340532 is an abundant number, since it is smaller than the sum of its proper divisors (3357819323148).

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

2045401340532 is a wasteful number, since it uses less digits than its factorization.

2045401340532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707473 (or 1707471 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 2045401340532 its reverse (2350431045402), we get a palindrome (4395832385934).

The spelling of 2045401340532 in words is "two trillion, forty-five billion, four hundred one million, three hundred forty thousand, five hundred thirty-two".