40424202024420 has 96 divisors (see below), whose sum is σ = 116768182422528. Its totient is φ = 10441408108032.

The previous prime is 40424202024397. The next prime is 40424202024431. The reversal of 40424202024420 is 2442020242404.

It is a happy number.

It is a super-2 number, since 2×40424202024420² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 40332519 + ... + 41322638.

It is an arithmetic number, because the mean of its divisors is an integer number (1216335233568).

Almost surely, 2^{40424202024420} is an apocalyptic number.

It is an amenable number.

40424202024420 is an abundant number, since it is smaller than the sum of its proper divisors (76343980398108).

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

40424202024420 is a wasteful number, since it uses less digits than its factorization.

40424202024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81655429 (or 81655427 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 40424202024420 its reverse (2442020242404), we get a palindrome (42866222266824).

The spelling of 40424202024420 in words is "forty trillion, four hundred twenty-four billion, two hundred two million, twenty-four thousand, four hundred twenty".