40340016381 has 32 divisors (see below), whose sum is σ = 65168416768. Its totient is φ = 21704915520.

The previous prime is 40340016361. The next prime is 40340016389. The reversal of 40340016381 is 18361004304.

It is not a de Polignac number, because 40340016381 - 2⁵ = 40340016349 is a prime.

It is a super-2 number, since 2×40340016381² (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 (40340016389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 813295 + ... + 861468.

It is an arithmetic number, because the mean of its divisors is an integer number (2036513024).

Almost surely, 2^40340016381 is an apocalyptic number.

It is an amenable number.

40340016381 is a deficient number, since it is larger than the sum of its proper divisors (24828400387).

40340016381 is a wasteful number, since it uses less digits than its factorization.

40340016381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674841.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 40340016381 in words is "forty billion, three hundred forty million, sixteen thousand, three hundred eighty-one".