40153293 has 8 divisors (see below), whose sum is σ = 59486400. Its totient is φ = 26768844.

The previous prime is 40153273. The next prime is 40153297. The reversal of 40153293 is 39235104.

40153293 is a `hidden beast` number, since 40 + 1 + 532 + 93 = 666.

It is not a de Polignac number, because 40153293 - 2⁶ = 40153229 is a prime.

It is a super-2 number, since 2×40153293² = 3224573877487698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1487159 = 40153293 / (4 + 0 + 1 + 5 + 3 + 2 + 9 + 3).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40153297) 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, 743553 + ... + 743606.

It is an arithmetic number, because the mean of its divisors is an integer number (7435800).

Almost surely, 2^40153293 is an apocalyptic number.

It is an amenable number.

40153293 is a deficient number, since it is larger than the sum of its proper divisors (19333107).

40153293 is a wasteful number, since it uses less digits than its factorization.

40153293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487168 (or 1487162 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 40153293 is about 6336.6626073983. The cubic root of 40153293 is about 342.4315113379.

Adding to 40153293 its reverse (39235104), we get a palindrome (79388397).

The spelling of 40153293 in words is "forty million, one hundred fifty-three thousand, two hundred ninety-three".