1465043240540 has 96 divisors (see below), whose sum is σ = 3397606926336. Its totient is φ = 526186679040.

The previous prime is 1465043240539. The next prime is 1465043240543. The reversal of 1465043240540 is 450423405641.

It is a junction number, because it is equal to n+sod(n) for n = 1465043240494 and 1465043240503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1465043240543) 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, 91711994 + ... + 91727966.

It is an arithmetic number, because the mean of its divisors is an integer number (35391738816).

Almost surely, 2^{1465043240540} is an apocalyptic number.

1465043240540 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 1465043240540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698803463168).

1465043240540 is an abundant number, since it is smaller than the sum of its proper divisors (1932563685796).

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

1465043240540 is a wasteful number, since it uses less digits than its factorization.

1465043240540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21099 (or 21097 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 1465043240540 in words is "one trillion, four hundred sixty-five billion, forty-three million, two hundred forty thousand, five hundred forty".