40225431 has 8 divisors (see below), whose sum is σ = 53825904. Its totient is φ = 26720960.

The previous prime is 40225429. The next prime is 40225487. The reversal of 40225431 is 13452204.

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 40225431 - 2¹ = 40225429 is a prime.

It is a super-2 number, since 2×40225431² = 3236170598271522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40225398 and 40225407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40225421) 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, 23016 + ... + 24701.

It is an arithmetic number, because the mean of its divisors is an integer number (6728238).

Almost surely, 2^40225431 is an apocalyptic number.

40225431 is a deficient number, since it is larger than the sum of its proper divisors (13600473).

40225431 is a wasteful number, since it uses less digits than its factorization.

40225431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48001.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40225431 is about 6342.3521661920. The cubic root of 40225431 is about 342.6364554753.

Adding to 40225431 its reverse (13452204), we get a palindrome (53677635).

It can be divided in two parts, 4022 and 5431, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 40225431 in words is "forty million, two hundred twenty-five thousand, four hundred thirty-one".