40326251 has 8 divisors (see below), whose sum is σ = 46535424. Its totient is φ = 34229160.

The previous prime is 40326241. The next prime is 40326259. The reversal of 40326251 is 15262304.

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

It is a de Polignac number, because none of the positive numbers 2^k-40326251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40326259) 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, 27245 + ... + 28686.

It is an arithmetic number, because the mean of its divisors is an integer number (5816928).

Almost surely, 2^40326251 is an apocalyptic number.

40326251 is a deficient number, since it is larger than the sum of its proper divisors (6209173).

40326251 is a wasteful number, since it uses less digits than its factorization.

40326251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56041.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40326251 is about 6350.2953474622. The cubic root of 40326251 is about 342.9224750913.

Adding to 40326251 its reverse (15262304), we get a palindrome (55588555).

The spelling of 40326251 in words is "forty million, three hundred twenty-six thousand, two hundred fifty-one".