40152238 has 8 divisors (see below), whose sum is σ = 68832432. Its totient is φ = 17208096.

The previous prime is 40152199. The next prime is 40152251. The reversal of 40152238 is 83225104.

40152238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×40152238² = 3224404432817288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433995 + ... + 1434022.

It is an arithmetic number, because the mean of its divisors is an integer number (8604054).

Almost surely, 2^40152238 is an apocalyptic number.

40152238 is a deficient number, since it is larger than the sum of its proper divisors (28680194).

40152238 is a wasteful number, since it uses less digits than its factorization.

40152238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868026.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40152238 is about 6336.5793611380. The cubic root of 40152238 is about 342.4285122612.

The spelling of 40152238 in words is "forty million, one hundred fifty-two thousand, two hundred thirty-eight".