400040737382 has 64 divisors (see below), whose sum is σ = 711051264000. Its totient is φ = 166402615680.

The previous prime is 400040737381. The next prime is 400040737403. The reversal of 400040737382 is 283737040004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400040737381) 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, 60618119 + ... + 60624717.

It is an arithmetic number, because the mean of its divisors is an integer number (11110176000).

Almost surely, 2^400040737382 is an apocalyptic number.

400040737382 is a deficient number, since it is larger than the sum of its proper divisors (311010526618).

400040737382 is a wasteful number, since it uses less digits than its factorization.

400040737382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8421.

The product of its (nonzero) digits is 112896, while the sum is 38.

Adding to 400040737382 its reverse (283737040004), we get a palindrome (683777777386).

The spelling of 400040737382 in words is "four hundred billion, forty million, seven hundred thirty-seven thousand, three hundred eighty-two".