20532241240 has 32 divisors (see below), whose sum is σ = 52797192480. Its totient is φ = 7039625472.

The previous prime is 20532241207. The next prime is 20532241277. The reversal of 20532241240 is 4214223502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36664437 + ... + 36664996.

It is an arithmetic number, because the mean of its divisors is an integer number (1649912265).

Almost surely, 2^20532241240 is an apocalyptic number.

20532241240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20532241240 is an abundant number, since it is smaller than the sum of its proper divisors (32264951240).

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

20532241240 is a wasteful number, since it uses less digits than its factorization.

20532241240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73329451 (or 73329447 counting only the distinct ones).

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

Adding to 20532241240 its reverse (4214223502), we get a palindrome (24746464742).

The spelling of 20532241240 in words is "twenty billion, five hundred thirty-two million, two hundred forty-one thousand, two hundred forty".