40704190820 has 24 divisors (see below), whose sum is σ = 85972905144. Its totient is φ = 16187561216.

The previous prime is 40704190819. The next prime is 40704190843. The reversal of 40704190820 is 2809140704.

It can be written as a sum of positive squares in 4 ways, for example, as 15861387364 + 24842803456 = 125942^2 + 157616^2 .

It is a super-3 number, since 3×40704190820³ (a number of 33 digits) contains 333 as substring.

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, 5878649 + ... + 5885568.

It is an arithmetic number, because the mean of its divisors is an integer number (3582204381).

Almost surely, 2^40704190820 is an apocalyptic number.

It is an amenable number.

40704190820 is an abundant number, since it is smaller than the sum of its proper divisors (45268714324).

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

40704190820 is a wasteful number, since it uses less digits than its factorization.

40704190820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11764399 (or 11764397 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 40704190820 in words is "forty billion, seven hundred four million, one hundred ninety thousand, eight hundred twenty".