40404124501 has 8 divisors (see below), whose sum is σ = 43514091320. Its totient is φ = 37294437312.

The previous prime is 40404124493. The next prime is 40404124513. The reversal of 40404124501 is 10542140404.

It can be written as a sum of positive squares in 4 ways, for example, as 2722500 + 40401402001 = 1650^2 + 201001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40404124501 - 2³ = 40404124493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40404124531) 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, 304495 + ... + 416563.

It is an arithmetic number, because the mean of its divisors is an integer number (5439261415).

Almost surely, 2^40404124501 is an apocalyptic number.

It is an amenable number.

40404124501 is a deficient number, since it is larger than the sum of its proper divisors (3109966819).

40404124501 is a wasteful number, since it uses less digits than its factorization.

40404124501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139815.

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 40404124501 its reverse (10542140404), we get a palindrome (50946264905).

The spelling of 40404124501 in words is "forty billion, four hundred four million, one hundred twenty-four thousand, five hundred one".