2240420020405 has 32 divisors (see below), whose sum is σ = 3299137205760. Its totient is φ = 1425553059840.

The previous prime is 2240420020387. The next prime is 2240420020411. The reversal of 2240420020405 is 5040200240422.

It is a de Polignac number, because none of the positive numbers 2^k-2240420020405 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2240420020405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26474740 + ... + 26559229.

It is an arithmetic number, because the mean of its divisors is an integer number (103098037680).

Almost surely, 2^{2240420020405} is an apocalyptic number.

It is an amenable number.

2240420020405 is a deficient number, since it is larger than the sum of its proper divisors (1058717185355).

2240420020405 is a wasteful number, since it uses less digits than its factorization.

2240420020405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53034069.

The product of its (nonzero) digits is 5120, while the sum is 25.

Adding to 2240420020405 its reverse (5040200240422), we get a palindrome (7280620260827).

The spelling of 2240420020405 in words is "two trillion, two hundred forty billion, four hundred twenty million, twenty thousand, four hundred five".