40155633 has 48 divisors (see below), whose sum is σ = 70886400. Its totient is φ = 21409920.

The previous prime is 40155623. The next prime is 40155653. The reversal of 40155633 is 33655104.

It is not a de Polignac number, because 40155633 - 2⁴ = 40155617 is a prime.

It is a super-2 number, since 2×40155633² = 3224949723261378, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40155597 and 40155606.

It is not an unprimeable number, because it can be changed into a prime (40155623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56283 + ... + 56991.

It is an arithmetic number, because the mean of its divisors is an integer number (1476800).

Almost surely, 2^40155633 is an apocalyptic number.

It is an amenable number.

40155633 is a deficient number, since it is larger than the sum of its proper divisors (30730767).

40155633 is a wasteful number, since it uses less digits than its factorization.

40155633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 40155633 is about 6336.8472444900. The cubic root of 40155633 is about 342.4381631308.

The spelling of 40155633 in words is "forty million, one hundred fifty-five thousand, six hundred thirty-three".