40455442494 has 64 divisors (see below), whose sum is σ = 94374144000. Its totient is φ = 12828922560.

The previous prime is 40455442483. The next prime is 40455442499. The reversal of 40455442494 is 49424455404.

40455442494 is a `hidden beast` number, since 4 + 0 + 4 + 554 + 4 + 2 + 4 + 94 = 666.

It is a super-3 number, since 3×40455442494³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40455442499) by changing a digit.

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, 106039 + ... + 303570.

It is an arithmetic number, because the mean of its divisors is an integer number (1474596000).

Almost surely, 2^40455442494 is an apocalyptic number.

40455442494 is an abundant number, since it is smaller than the sum of its proper divisors (53918701506).

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

40455442494 is a wasteful number, since it uses less digits than its factorization.

40455442494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409710 (or 409704 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

Adding to 40455442494 its reverse (49424455404), we get a palindrome (89879897898).

The spelling of 40455442494 in words is "forty billion, four hundred fifty-five million, four hundred forty-two thousand, four hundred ninety-four".