40225198 has 16 divisors (see below), whose sum is σ = 66207456. Its totient is φ = 18214560.

The previous prime is 40225193. The next prime is 40225201. The reversal of 40225198 is 89152204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40225193) 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, 13218 + ... + 15973.

It is an arithmetic number, because the mean of its divisors is an integer number (4137966).

Almost surely, 2^40225198 is an apocalyptic number.

40225198 is a deficient number, since it is larger than the sum of its proper divisors (25982258).

40225198 is a wasteful number, since it uses less digits than its factorization.

40225198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29259.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 40225198 is about 6342.3337975859. Note that the first 3 decimals coincide. The cubic root of 40225198 is about 342.6357939167.

It can be divided in two parts, 402 and 25198, that added together give a square (25600 = 160²).

The spelling of 40225198 in words is "forty million, two hundred twenty-five thousand, one hundred ninety-eight".