40978880272 has 60 divisors (see below), whose sum is σ = 87611259708. Its totient is φ = 18554060800.

The previous prime is 40978880231. The next prime is 40978880297. The reversal of 40978880272 is 27208887904.

It can be written as a sum of positive squares in 2 ways, for example, as 34216120576 + 6762759696 = 184976^2 + 82236^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456372 + ... + 538732.

Almost surely, 2^40978880272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40978880272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43805629854).

40978880272 is an abundant number, since it is smaller than the sum of its proper divisors (46632379436).

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

40978880272 is a wasteful number, since it uses less digits than its factorization.

40978880272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82648 (or 82631 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 55.

The spelling of 40978880272 in words is "forty billion, nine hundred seventy-eight million, eight hundred eighty thousand, two hundred seventy-two".