20240145340 has 12 divisors (see below), whose sum is σ = 42504305256. Its totient is φ = 8096058128.

The previous prime is 20240145329. The next prime is 20240145389. The reversal of 20240145340 is 4354104202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506003614 + ... + 506003653.

It is an arithmetic number, because the mean of its divisors is an integer number (3542025438).

Almost surely, 2^20240145340 is an apocalyptic number.

20240145340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20240145340 is an abundant number, since it is smaller than the sum of its proper divisors (22264159916).

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

20240145340 is a wasteful number, since it uses less digits than its factorization.

20240145340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012007276 (or 1012007274 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20240145340 its reverse (4354104202), we get a palindrome (24594249542).

The spelling of 20240145340 in words is "twenty billion, two hundred forty million, one hundred forty-five thousand, three hundred forty".