40420331024 has 10 divisors (see below), whose sum is σ = 78314391390. Its totient is φ = 20210165504.

The previous prime is 40420330999. The next prime is 40420331089. The reversal of 40420331024 is 42013302404.

It can be written as a sum of positive squares in only one way, i.e., 37876944400 + 2543386624 = 194620^2 + 50432^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263135329 + ... + 1263135360.

It is an arithmetic number, because the mean of its divisors is an integer number (7831439139).

Almost surely, 2^40420331024 is an apocalyptic number.

It is an amenable number.

40420331024 is a deficient number, since it is larger than the sum of its proper divisors (37894060366).

40420331024 is a wasteful number, since it uses less digits than its factorization.

40420331024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526270697 (or 2526270691 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40420331024 its reverse (42013302404), we get a palindrome (82433633428).

The spelling of 40420331024 in words is "forty billion, four hundred twenty million, three hundred thirty-one thousand, twenty-four".