40155471426 has 64 divisors (see below), whose sum is σ = 95941859328. Its totient is φ = 10954994688.

The previous prime is 40155471409. The next prime is 40155471427. The reversal of 40155471426 is 62417455104.

It is a super-2 number, since 2×40155471426² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40155471427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521361 + ... + 593403.

It is an arithmetic number, because the mean of its divisors is an integer number (1499091552).

Almost surely, 2^40155471426 is an apocalyptic number.

40155471426 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40155471426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47970929664).

40155471426 is an abundant number, since it is smaller than the sum of its proper divisors (55786387902).

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

40155471426 is a wasteful number, since it uses less digits than its factorization.

40155471426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72655.

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 40155471426 in words is "forty billion, one hundred fifty-five million, four hundred seventy-one thousand, four hundred twenty-six".