40654231 has 8 divisors (see below), whose sum is σ = 41899104. Its totient is φ = 39417120.

The previous prime is 40654213. The next prime is 40654241. The reversal of 40654231 is 13245604.

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 40654231 - 2⁵ = 40654199 is a prime.

It is a super-2 number, since 2×40654231² = 3305532996402722, 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 = 40654196 and 40654205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40654241) 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, 9741 + ... + 13273.

It is an arithmetic number, because the mean of its divisors is an integer number (5237388).

Almost surely, 2^40654231 is an apocalyptic number.

40654231 is a deficient number, since it is larger than the sum of its proper divisors (1244873).

40654231 is a wasteful number, since it uses less digits than its factorization.

40654231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40654231 is about 6376.0670479536. The cubic root of 40654231 is about 343.8496475408.

Adding to 40654231 its reverse (13245604), we get a palindrome (53899835).

The spelling of 40654231 in words is "forty million, six hundred fifty-four thousand, two hundred thirty-one".