40310321420 has 24 divisors (see below), whose sum is σ = 84657504624. Its totient is φ = 16123018176.

The previous prime is 40310321413. The next prime is 40310321453. The reversal of 40310321420 is 2412301304.

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

It is a junction number, because it is equal to n+sod(n) for n = 40310321392 and 40310321401.

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, 268379 + ... + 390701.

It is an arithmetic number, because the mean of its divisors is an integer number (3527396026).

Almost surely, 2^40310321420 is an apocalyptic number.

It is an amenable number.

40310321420 is an abundant number, since it is smaller than the sum of its proper divisors (44347183204).

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

40310321420 is a wasteful number, since it uses less digits than its factorization.

40310321420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138809 (or 138807 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40310321420 its reverse (2412301304), we get a palindrome (42722622724).

The spelling of 40310321420 in words is "forty billion, three hundred ten million, three hundred twenty-one thousand, four hundred twenty".