40405769404 has 96 divisors (see below), whose sum is σ = 95032014336. Its totient is φ = 14517377280.

The previous prime is 40405769381. The next prime is 40405769407. The reversal of 40405769404 is 40496750404.

It is a super-2 number, since 2×40405769404² (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 (40405769407) 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 31 ways as a sum of consecutive naturals, for example, 4652314 + ... + 4660990.

It is an arithmetic number, because the mean of its divisors is an integer number (989916816).

Almost surely, 2^40405769404 is an apocalyptic number.

40405769404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40405769404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47516007168).

40405769404 is an abundant number, since it is smaller than the sum of its proper divisors (54626244932).

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

40405769404 is a wasteful number, since it uses less digits than its factorization.

40405769404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875 (or 9873 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 40405769404 in words is "forty billion, four hundred five million, seven hundred sixty-nine thousand, four hundred four".