40450552012 has 72 divisors (see below), whose sum is σ = 81225701424. Its totient is φ = 17518384128.

The previous prime is 40450551979. The next prime is 40450552013. The reversal of 40450552012 is 21025505404.

It is not an unprimeable number, because it can be changed into a prime (40450552013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5210838 + ... + 5218594.

It is an arithmetic number, because the mean of its divisors is an integer number (1128134742).

Almost surely, 2^40450552012 is an apocalyptic number.

It is an amenable number.

40450552012 is an abundant number, since it is smaller than the sum of its proper divisors (40775149412).

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

40450552012 is a wasteful number, since it uses less digits than its factorization.

40450552012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155 (or 8136 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 40450552012 in words is "forty billion, four hundred fifty million, five hundred fifty-two thousand, twelve".