40523022420 has 96 divisors (see below), whose sum is σ = 118492657920. Its totient is φ = 10328017920.

The previous prime is 40523022409. The next prime is 40523022431. The reversal of 40523022420 is 2422032504.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40523022409) and next prime (40523022431).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1811866 + ... + 1834094.

It is an arithmetic number, because the mean of its divisors is an integer number (1234298520).

Almost surely, 2^40523022420 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 40523022420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59246328960).

40523022420 is an abundant number, since it is smaller than the sum of its proper divisors (77969635500).

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

40523022420 is a wasteful number, since it uses less digits than its factorization.

40523022420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23585 (or 23583 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 40523022420 its reverse (2422032504), we get a palindrome (42945054924).

The spelling of 40523022420 in words is "forty billion, five hundred twenty-three million, twenty-two thousand, four hundred twenty".