40472155 has 8 divisors (see below), whose sum is σ = 51423552. Its totient is φ = 30473088.

The previous prime is 40472119. The next prime is 40472161. The reversal of 40472155 is 55127404.

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

It is a cyclic number.

It is not a de Polignac number, because 40472155 - 2¹¹ = 40470107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237987 + ... + 238156.

It is an arithmetic number, because the mean of its divisors is an integer number (6427944).

Almost surely, 2^40472155 is an apocalyptic number.

40472155 is a deficient number, since it is larger than the sum of its proper divisors (10951397).

40472155 is a wasteful number, since it uses less digits than its factorization.

40472155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476165.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 40472155 is about 6361.7729447065. The cubic root of 40472155 is about 343.3355520850.

Adding to 40472155 its reverse (55127404), we get a palindrome (95599559).

The spelling of 40472155 in words is "forty million, four hundred seventy-two thousand, one hundred fifty-five".