40026405424 has 20 divisors (see below), whose sum is σ = 77646809800. Its totient is φ = 19988519040.

The previous prime is 40026405421. The next prime is 40026405427. The reversal of 40026405424 is 42450462004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40026405421) and next prime (40026405427).

It is a super-2 number, since 2×40026405424² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40026405421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1529349 + ... + 1555300.

It is an arithmetic number, because the mean of its divisors is an integer number (3882340490).

Almost surely, 2^40026405424 is an apocalyptic number.

It is an amenable number.

40026405424 is a deficient number, since it is larger than the sum of its proper divisors (37620404376).

40026405424 is a wasteful number, since it uses less digits than its factorization.

40026405424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085468 (or 3085462 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 40026405424 its reverse (42450462004), we get a palindrome (82476867428).

The spelling of 40026405424 in words is "forty billion, twenty-six million, four hundred five thousand, four hundred twenty-four".