40893361640 has 64 divisors (see below), whose sum is σ = 93358656000. Its totient is φ = 16117857280.

The previous prime is 40893361573. The next prime is 40893361693. The reversal of 40893361640 is 4616339804.

It is a junction number, because it is equal to n+sod(n) for n = 40893361591 and 40893361600.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7406801 + ... + 7412319.

It is an arithmetic number, because the mean of its divisors is an integer number (1458729000).

Almost surely, 2^40893361640 is an apocalyptic number.

40893361640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40893361640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46679328000).

40893361640 is an abundant number, since it is smaller than the sum of its proper divisors (52465294360).

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

40893361640 is a wasteful number, since it uses less digits than its factorization.

40893361640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8210 (or 8206 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 40893361640 in words is "forty billion, eight hundred ninety-three million, three hundred sixty-one thousand, six hundred forty".