40206315 has 8 divisors (see below), whose sum is σ = 64330128. Its totient is φ = 21443360.

The previous prime is 40206301. The next prime is 40206319. The reversal of 40206315 is 51360204.

It is a happy number.

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

It is not a de Polignac number, because 40206315 - 2⁶ = 40206251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40206291 and 40206300.

It is not an unprimeable number, because it can be changed into a prime (40206319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1340196 + ... + 1340225.

It is an arithmetic number, because the mean of its divisors is an integer number (8041266).

Almost surely, 2^40206315 is an apocalyptic number.

40206315 is a deficient number, since it is larger than the sum of its proper divisors (24123813).

40206315 is a wasteful number, since it uses less digits than its factorization.

40206315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680429.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 40206315 is about 6340.8449752379. The cubic root of 40206315 is about 342.5821707759.

Adding to 40206315 its reverse (51360204), we get a palindrome (91566519).

The spelling of 40206315 in words is "forty million, two hundred six thousand, three hundred fifteen".