40225919 has 8 divisors (see below), whose sum is σ = 43110240. Its totient is φ = 37436256.

The previous prime is 40225909. The next prime is 40225921. The reversal of 40225919 is 91952204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40225919 - 2¹⁶ = 40160383 is a prime.

It is a super-2 number, since 2×40225919² = 3236249118789122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40225909) 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, 22784 + ... + 24485.

It is an arithmetic number, because the mean of its divisors is an integer number (5388780).

Almost surely, 2^40225919 is an apocalyptic number.

40225919 is a deficient number, since it is larger than the sum of its proper divisors (2884321).

40225919 is a wasteful number, since it uses less digits than its factorization.

40225919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47329.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 40225919 is about 6342.3906376066. The cubic root of 40225919 is about 342.6378410492.

The spelling of 40225919 in words is "forty million, two hundred twenty-five thousand, nine hundred nineteen".