40105451320 has 32 divisors (see below), whose sum is σ = 98440654320. Its totient is φ = 14583800320.

The previous prime is 40105451227. The next prime is 40105451327. The reversal of 40105451320 is 2315450104.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40105451327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45573937 + ... + 45574816.

Almost surely, 2^40105451320 is an apocalyptic number.

40105451320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40105451320 is an abundant number, since it is smaller than the sum of its proper divisors (58335203000).

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

40105451320 is a wasteful number, since it uses less digits than its factorization.

40105451320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91148775 (or 91148771 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 40105451320 in words is "forty billion, one hundred five million, four hundred fifty-one thousand, three hundred twenty".