40325286940 has 48 divisors (see below), whose sum is σ = 87279609312. Its totient is φ = 15638628096.

The previous prime is 40325286923. The next prime is 40325286941. The reversal of 40325286940 is 4968252304.

It is a super-2 number, since 2×40325286940² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40325286941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113142 + ... + 305698.

It is an arithmetic number, because the mean of its divisors is an integer number (1818325194).

Almost surely, 2^40325286940 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 40325286940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43639804656).

40325286940 is an abundant number, since it is smaller than the sum of its proper divisors (46954322372).

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

40325286940 is a wasteful number, since it uses less digits than its factorization.

40325286940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192886 (or 192884 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 40325286940 in words is "forty billion, three hundred twenty-five million, two hundred eighty-six thousand, nine hundred forty".