40885901394 has 64 divisors (see below), whose sum is σ = 90508368384. Its totient is φ = 12231288576.

The previous prime is 40885901359. The next prime is 40885901429. The reversal of 40885901394 is 49310958804.

It is an interprime number because it is at equal distance from previous prime (40885901359) and next prime (40885901429).

It is a super-2 number, since 2×40885901394² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4650727 + ... + 4659509.

It is an arithmetic number, because the mean of its divisors is an integer number (1414193256).

Almost surely, 2^40885901394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40885901394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45254184192).

40885901394 is an abundant number, since it is smaller than the sum of its proper divisors (49622466990).

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

40885901394 is a wasteful number, since it uses less digits than its factorization.

40885901394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10451.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 40885901394 in words is "forty billion, eight hundred eighty-five million, nine hundred one thousand, three hundred ninety-four".