40472215 has 24 divisors (see below), whose sum is σ = 56583072. Its totient is φ = 27220800.

The previous prime is 40472209. The next prime is 40472227. The reversal of 40472215 is 51227404.

It is not a de Polignac number, because 40472215 - 2¹³ = 40464023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40472215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 378192 + ... + 378298.

It is an arithmetic number, because the mean of its divisors is an integer number (2357628).

Almost surely, 2^40472215 is an apocalyptic number.

40472215 is a deficient number, since it is larger than the sum of its proper divisors (16110857).

40472215 is a wasteful number, since it uses less digits than its factorization.

40472215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 40472215 is about 6361.7776603714. Note that the first 3 decimals coincide. The cubic root of 40472215 is about 343.3357217500.

Adding to 40472215 its reverse (51227404), we get a palindrome (91699619).

The spelling of 40472215 in words is "forty million, four hundred seventy-two thousand, two hundred fifteen".