40181225454 has 96 divisors (see below), whose sum is σ = 89705401344. Its totient is φ = 12994007040.

The previous prime is 40181225431. The next prime is 40181225459. The reversal of 40181225454 is 45452218104.

40181225454 is a `hidden beast` number, since 4 + 0 + 181 + 2 + 25 + 454 = 666.

It is a super-2 number, since 2×40181225454² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40181225459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26912332 + ... + 26913824.

It is an arithmetic number, because the mean of its divisors is an integer number (934431264).

Almost surely, 2^40181225454 is an apocalyptic number.

40181225454 is an abundant number, since it is smaller than the sum of its proper divisors (49524175890).

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

40181225454 is a wasteful number, since it uses less digits than its factorization.

40181225454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 40181225454 in words is "forty billion, one hundred eighty-one million, two hundred twenty-five thousand, four hundred fifty-four".