240020422040 has 96 divisors (see below), whose sum is σ = 642826633680. Its totient is φ = 80378903808.

The previous prime is 240020422039. The next prime is 240020422087. The reversal of 240020422040 is 40224020042.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1339667 + ... + 1508226.

Almost surely, 2^240020422040 is an apocalyptic number.

240020422040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240020422040 is an abundant number, since it is smaller than the sum of its proper divisors (402806211640).

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

240020422040 is a wasteful number, since it uses less digits than its factorization.

240020422040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847961 (or 2847950 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 240020422040 its reverse (40224020042), we get a palindrome (280244442082).

The spelling of 240020422040 in words is "two hundred forty billion, twenty million, four hundred twenty-two thousand, forty".