40634433 has 32 divisors (see below), whose sum is σ = 69273600. Its totient is φ = 23059728.

The previous prime is 40634431. The next prime is 40634467. The reversal of 40634433 is 33443604.

40634433 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 40634433 - 2¹ = 40634431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40634397 and 40634406.

It is not an unprimeable number, because it can be changed into a prime (40634431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30148 + ... + 31466.

It is an arithmetic number, because the mean of its divisors is an integer number (2164800).

Almost surely, 2^40634433 is an apocalyptic number.

It is an amenable number.

40634433 is a deficient number, since it is larger than the sum of its proper divisors (28639167).

40634433 is a wasteful number, since it uses less digits than its factorization.

40634433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 40634433 is about 6374.5143344415. The cubic root of 40634433 is about 343.7938219394.

The spelling of 40634433 in words is "forty million, six hundred thirty-four thousand, four hundred thirty-three".