40254447420 has 384 divisors, whose sum is σ = 140507136000. Its totient is φ = 9483505920.

The previous prime is 40254447367. The next prime is 40254447437. The reversal of 40254447420 is 2474445204.

40254447420 is a `hidden beast` number, since 40 + 2 + 544 + 4 + 74 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 91695561 + ... + 91695999.

It is an arithmetic number, because the mean of its divisors is an integer number (365904000).

Almost surely, 2^40254447420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40254447420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70253568000).

40254447420 is an abundant number, since it is smaller than the sum of its proper divisors (100252688580).

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

40254447420 is a wasteful number, since it uses less digits than its factorization.

40254447420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 36.

The spelling of 40254447420 in words is "forty billion, two hundred fifty-four million, four hundred forty-seven thousand, four hundred twenty".