40397410 has 8 divisors (see below), whose sum is σ = 72715356. Its totient is φ = 16158960.

The previous prime is 40397381. The next prime is 40397419. The reversal of 40397410 is 1479304.

It can be written as a sum of positive squares in 2 ways, for example, as 40106889 + 290521 = 6333^2 + 539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40397419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2019861 + ... + 2019880.

Almost surely, 2^40397410 is an apocalyptic number.

40397410 is a deficient number, since it is larger than the sum of its proper divisors (32317946).

40397410 is a wasteful number, since it uses less digits than its factorization.

40397410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039748.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40397410 is about 6355.8956882567. The cubic root of 40397410 is about 343.1240615743.

It can be divided in two parts, 4039 and 7410, that added together give a square (11449 = 107²).

The spelling of 40397410 in words is "forty million, three hundred ninety-seven thousand, four hundred ten".