40213875 has 64 divisors (see below), whose sum is σ = 73696896. Its totient is φ = 19353600.

The previous prime is 40213871. The next prime is 40213879. The reversal of 40213875 is 57831204.

It is an interprime number because it is at equal distance from previous prime (40213871) and next prime (40213879).

It is not a de Polignac number, because 40213875 - 2² = 40213871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40213871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 355819 + ... + 355931.

It is an arithmetic number, because the mean of its divisors is an integer number (1151514).

Almost surely, 2^40213875 is an apocalyptic number.

40213875 is the 3390-th nonagonal number.

40213875 is a deficient number, since it is larger than the sum of its proper divisors (33483021).

40213875 is a wasteful number, since it uses less digits than its factorization.

40213875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 40213875 is about 6341.4410822777. The cubic root of 40213875 is about 342.6036413575.

The spelling of 40213875 in words is "forty million, two hundred thirteen thousand, eight hundred seventy-five".