40396366 has 4 divisors (see below), whose sum is σ = 60594552. Its totient is φ = 20198182.

The previous prime is 40396361. The next prime is 40396387. The reversal of 40396366 is 66369304.

40396366 = T₅₁₈₈ + T₅₁₈₉ + T₅₁₉₀.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40396361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10099090 + ... + 10099093.

It is an arithmetic number, because the mean of its divisors is an integer number (15148638).

Almost surely, 2^40396366 is an apocalyptic number.

40396366 is the 5190-th centered triangular number.

40396366 is a deficient number, since it is larger than the sum of its proper divisors (20198186).

40396366 is a wasteful number, since it uses less digits than its factorization.

40396366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20198185.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 40396366 is about 6355.8135592542. The cubic root of 40396366 is about 343.1211057363.

It can be divided in two parts, 403 and 96366, that added together give a palindrome (96769).

The spelling of 40396366 in words is "forty million, three hundred ninety-six thousand, three hundred sixty-six".