40234631 has 4 divisors (see below), whose sum is σ = 42601392. Its totient is φ = 37867872.

The previous prime is 40234603. The next prime is 40234633. The reversal of 40234631 is 13643204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40234631 - 2¹⁴ = 40218247 is a prime.

It is a super-2 number, since 2×40234631² = 3237651063412322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40234597 and 40234606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40234633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183355 + ... + 1183388.

It is an arithmetic number, because the mean of its divisors is an integer number (10650348).

Almost surely, 2^40234631 is an apocalyptic number.

40234631 is a deficient number, since it is larger than the sum of its proper divisors (2366761).

40234631 is a wasteful number, since it uses less digits than its factorization.

40234631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366760.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 40234631 is about 6343.0774076942. The cubic root of 40234631 is about 342.6625750637.

Adding to 40234631 its reverse (13643204), we get a palindrome (53877835).

The spelling of 40234631 in words is "forty million, two hundred thirty-four thousand, six hundred thirty-one".