40188230 has 32 divisors (see below), whose sum is σ = 77932800. Its totient is φ = 14872032.

The previous prime is 40188227. The next prime is 40188233. The reversal of 40188230 is 3288104.

It is an interprime number because it is at equal distance from previous prime (40188227) and next prime (40188233).

It is a self number, because there is not a number n which added to its sum of digits gives 40188230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40188233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5711 + ... + 10629.

It is an arithmetic number, because the mean of its divisors is an integer number (2435400).

Almost surely, 2^40188230 is an apocalyptic number.

40188230 is a deficient number, since it is larger than the sum of its proper divisors (37744570).

40188230 is a wasteful number, since it uses less digits than its factorization.

40188230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 40188230 is about 6339.4187430710. The cubic root of 40188230 is about 342.5307980191.

The spelling of 40188230 in words is "forty million, one hundred eighty-eight thousand, two hundred thirty".