40215346 has 8 divisors (see below), whose sum is σ = 60365340. Its totient is φ = 20093568.

The previous prime is 40215283. The next prime is 40215347. The reversal of 40215346 is 64351204.

It can be written as a sum of positive squares in 2 ways, for example, as 35868121 + 4347225 = 5989^2 + 2085^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 40215346.

It is not an unprimeable number, because it can be changed into a prime (40215347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3031 + ... + 9466.

Almost surely, 2^40215346 is an apocalyptic number.

40215346 is a deficient number, since it is larger than the sum of its proper divisors (20149994).

40215346 is a wasteful number, since it uses less digits than its factorization.

40215346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14108.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40215346 is about 6341.5570643179. The cubic root of 40215346 is about 342.6078187200.

The spelling of 40215346 in words is "forty million, two hundred fifteen thousand, three hundred forty-six".