40190472381 has 16 divisors (see below), whose sum is σ = 55321253888. Its totient is φ = 25926836400.

The previous prime is 40190472313. The next prime is 40190472391. The reversal of 40190472381 is 18327409104.

It is not a de Polignac number, because 40190472381 - 2⁹ = 40190471869 is a prime.

It is a super-2 number, since 2×40190472381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40190472391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1791846 + ... + 1814136.

It is an arithmetic number, because the mean of its divisors is an integer number (3457578368).

Almost surely, 2^40190472381 is an apocalyptic number.

It is an amenable number.

40190472381 is a deficient number, since it is larger than the sum of its proper divisors (15130781507).

40190472381 is a wasteful number, since it uses less digits than its factorization.

40190472381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41712.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 40190472381 in words is "forty billion, one hundred ninety million, four hundred seventy-two thousand, three hundred eighty-one".