40531351 has 16 divisors (see below), whose sum is σ = 49043200. Its totient is φ = 32721408.

The previous prime is 40531333. The next prime is 40531363. The reversal of 40531351 is 15313504.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40531351 - 2⁵ = 40531319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40531331) 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, 24880 + ... + 26458.

It is an arithmetic number, because the mean of its divisors is an integer number (3065200).

Almost surely, 2^40531351 is an apocalyptic number.

40531351 is a deficient number, since it is larger than the sum of its proper divisors (8511849).

40531351 is a wasteful number, since it uses less digits than its factorization.

40531351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 40531351 is about 6366.4237213682. The cubic root of 40531351 is about 343.5028620992.

Adding to 40531351 its reverse (15313504), we get a palindrome (55844855).

The spelling of 40531351 in words is "forty million, five hundred thirty-one thousand, three hundred fifty-one".