40125043530 has 288 divisors, whose sum is σ = 128871969408. Its totient is φ = 8587941120.

The previous prime is 40125043523. The next prime is 40125043561. The reversal of 40125043530 is 3534052104.

40125043530 is a `hidden beast` number, since 4 + 0 + 125 + 0 + 4 + 3 + 530 = 666.

40125043530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40125043530² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40125043494 and 40125043503.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3249949 + ... + 3262271.

It is an arithmetic number, because the mean of its divisors is an integer number (447472116).

Almost surely, 2^40125043530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40125043530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64435984704).

40125043530 is an abundant number, since it is smaller than the sum of its proper divisors (88746925878).

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

40125043530 is a wasteful number, since it uses less digits than its factorization.

40125043530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12394 (or 12380 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 40125043530 its reverse (3534052104), we get a palindrome (43659095634).

The spelling of 40125043530 in words is "forty billion, one hundred twenty-five million, forty-three thousand, five hundred thirty".