40045420352 has 56 divisors (see below), whose sum is σ = 91911562176. Its totient is φ = 16955532288.

The previous prime is 40045420351. The next prime is 40045420369. The reversal of 40045420352 is 25302454004.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40045420351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501293 + ... + 575660.

It is an arithmetic number, because the mean of its divisors is an integer number (1641277896).

Almost surely, 2^40045420352 is an apocalyptic number.

It is an amenable number.

40045420352 is an abundant number, since it is smaller than the sum of its proper divisors (51866141824).

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

40045420352 is a wasteful number, since it uses less digits than its factorization.

40045420352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077055 (or 1077045 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 40045420352 its reverse (25302454004), we get a palindrome (65347874356).

The spelling of 40045420352 in words is "forty billion, forty-five million, four hundred twenty thousand, three hundred fifty-two".