40397576390 has 16 divisors (see below), whose sum is σ = 72718657632. Its totient is φ = 16158359424.

The previous prime is 40397576363. The next prime is 40397576399. The reversal of 40397576390 is 9367579304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40397576399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222047 + ... + 360693.

It is an arithmetic number, because the mean of its divisors is an integer number (4544916102).

Almost surely, 2^40397576390 is an apocalyptic number.

40397576390 is a deficient number, since it is larger than the sum of its proper divisors (32321081242).

40397576390 is a wasteful number, since it uses less digits than its factorization.

40397576390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167791.

The product of its (nonzero) digits is 4286520, while the sum is 53.

The spelling of 40397576390 in words is "forty billion, three hundred ninety-seven million, five hundred seventy-six thousand, three hundred ninety".