10420056240 has 80 divisors (see below), whose sum is σ = 35238744576. Its totient is φ = 2526073600.

The previous prime is 10420056239. The next prime is 10420056263. The reversal of 10420056240 is 4265002401.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10420056240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1970856 + ... + 1976135.

Almost surely, 2^10420056240 is an apocalyptic number.

10420056240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10420056240 is an abundant number, since it is smaller than the sum of its proper divisors (24818688336).

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

10420056240 is a wasteful number, since it uses less digits than its factorization.

10420056240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3947018 (or 3947012 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 10420056240 its reverse (4265002401), we get a palindrome (14685058641).

The spelling of 10420056240 in words is "ten billion, four hundred twenty million, fifty-six thousand, two hundred forty".