40436700381 has 48 divisors (see below), whose sum is σ = 72980988288. Its totient is φ = 20959948800.

The previous prime is 40436700331. The next prime is 40436700401. The reversal of 40436700381 is 18300763404.

It is not a de Polignac number, because 40436700381 - 2²⁵ = 40403145949 is a prime.

It is a super-2 number, since 2×40436700381² (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 (40436700331) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 252861 + ... + 380541.

It is an arithmetic number, because the mean of its divisors is an integer number (1520437256).

Almost surely, 2^40436700381 is an apocalyptic number.

It is an amenable number.

40436700381 is a deficient number, since it is larger than the sum of its proper divisors (32544287907).

40436700381 is a wasteful number, since it uses less digits than its factorization.

40436700381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128162 (or 128159 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 40436700381 in words is "forty billion, four hundred thirty-six million, seven hundred thousand, three hundred eighty-one".