40121424400 has 30 divisors (see below), whose sum is σ = 96391723082. Its totient is φ = 16048569600.

The previous prime is 40121424373. The next prime is 40121424419. The reversal of 40121424400 is 442412104.

It can be written as a sum of positive squares in 3 ways, for example, as 1183084816 + 38938339584 = 34396^2 + 197328^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50151381 + ... + 50152180.

Almost surely, 2^40121424400 is an apocalyptic number.

40121424400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40121424400 is an abundant number, since it is smaller than the sum of its proper divisors (56270298682).

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

40121424400 is a wasteful number, since it uses less digits than its factorization.

40121424400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100303579 (or 100303568 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 40121424400 its reverse (442412104), we get a palindrome (40563836504).

The spelling of 40121424400 in words is "forty billion, one hundred twenty-one million, four hundred twenty-four thousand, four hundred".