40225197 has 16 divisors (see below), whose sum is σ = 56309760. Its totient is φ = 25508400.

The previous prime is 40225193. The next prime is 40225201. The reversal of 40225197 is 79152204.

It is an interprime number because it is at equal distance from previous prime (40225193) and next prime (40225201).

It is not a de Polignac number, because 40225197 - 2² = 40225193 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1822 + ... + 9152.

It is an arithmetic number, because the mean of its divisors is an integer number (3519360).

Almost surely, 2^40225197 is an apocalyptic number.

It is an amenable number.

40225197 is a deficient number, since it is larger than the sum of its proper divisors (16084563).

40225197 is a wasteful number, since it uses less digits than its factorization.

40225197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7424.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 40225197 is about 6342.3337187505. Note that the first 3 decimals coincide. The cubic root of 40225197 is about 342.6357910773.

The spelling of 40225197 in words is "forty million, two hundred twenty-five thousand, one hundred ninety-seven".