40198325 has 24 divisors (see below), whose sum is σ = 51300288. Its totient is φ = 31236480.

The previous prime is 40198313. The next prime is 40198337. The reversal of 40198325 is 52389104.

It is an interprime number because it is at equal distance from previous prime (40198313) and next prime (40198337).

It is not a de Polignac number, because 40198325 - 2⁴ = 40198309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40198291 and 40198300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172409 + ... + 172641.

It is an arithmetic number, because the mean of its divisors is an integer number (2137512).

Almost surely, 2^40198325 is an apocalyptic number.

It is an amenable number.

40198325 is a deficient number, since it is larger than the sum of its proper divisors (11101963).

40198325 is a wasteful number, since it uses less digits than its factorization.

40198325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 40198325 is about 6340.2149017206. The cubic root of 40198325 is about 342.5594760584.

The spelling of 40198325 in words is "forty million, one hundred ninety-eight thousand, three hundred twenty-five".