40400127530 has 32 divisors (see below), whose sum is σ = 87997591296. Its totient is φ = 13036679424.

The previous prime is 40400127511. The next prime is 40400127533. The reversal of 40400127530 is 3572100404.

It is a self number, because there is not a number n which added to its sum of digits gives 40400127530.

It is not an unprimeable number, because it can be changed into a prime (40400127533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16973654 + ... + 16976033.

It is an arithmetic number, because the mean of its divisors is an integer number (2749924728).

Almost surely, 2^40400127530 is an apocalyptic number.

40400127530 is an abundant number, since it is smaller than the sum of its proper divisors (47597463766).

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

40400127530 is a wasteful number, since it uses less digits than its factorization.

40400127530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33949718.

The product of its (nonzero) digits is 3360, while the sum is 26.

Adding to 40400127530 its reverse (3572100404), we get a palindrome (43972227934).

The spelling of 40400127530 in words is "forty billion, four hundred million, one hundred twenty-seven thousand, five hundred thirty".