40205230 has 16 divisors (see below), whose sum is σ = 77936544. Its totient is φ = 14844960.

The previous prime is 40205213. The next prime is 40205237. The reversal of 40205230 is 3250204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40205237) 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, 154506 + ... + 154765.

It is an arithmetic number, because the mean of its divisors is an integer number (4871034).

Almost surely, 2^40205230 is an apocalyptic number.

40205230 is a deficient number, since it is larger than the sum of its proper divisors (37731314).

40205230 is a wasteful number, since it uses less digits than its factorization.

40205230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309291.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 40205230 is about 6340.7594182401. The cubic root of 40205230 is about 342.5790891290.

Adding to 40205230 its reverse (3250204), we get a palindrome (43455434).

It can be divided in two parts, 40205 and 230, that multiplied together give a triangular number (9247150 = T₄₃₀₀).

The spelling of 40205230 in words is "forty million, two hundred five thousand, two hundred thirty".