40231545 has 8 divisors (see below), whose sum is σ = 64370496. Its totient is φ = 21456816.

The previous prime is 40231519. The next prime is 40231549. The reversal of 40231545 is 54513204.

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

It is not a de Polignac number, because 40231545 - 2⁶ = 40231481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40231549) 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, 1341037 + ... + 1341066.

It is an arithmetic number, because the mean of its divisors is an integer number (8046312).

Almost surely, 2^40231545 is an apocalyptic number.

It is an amenable number.

40231545 is a deficient number, since it is larger than the sum of its proper divisors (24138951).

40231545 is a wasteful number, since it uses less digits than its factorization.

40231545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682111.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 40231545 is about 6342.8341457112. The cubic root of 40231545 is about 342.6538140891.

Adding to 40231545 its reverse (54513204), we get a palindrome (94744749).

The spelling of 40231545 in words is "forty million, two hundred thirty-one thousand, five hundred forty-five".