40445433 has 48 divisors (see below), whose sum is σ = 73416000. Its totient is φ = 21881664.

The previous prime is 40445417. The next prime is 40445437. The reversal of 40445433 is 33454404.

It is not a de Polignac number, because 40445433 - 2⁴ = 40445417 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 = 40445397 and 40445406.

It is not an unprimeable number, because it can be changed into a prime (40445437) 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, 24333 + ... + 25941.

It is an arithmetic number, because the mean of its divisors is an integer number (1529500).

Almost surely, 2^40445433 is an apocalyptic number.

It is an amenable number.

40445433 is a deficient number, since it is larger than the sum of its proper divisors (32970567).

40445433 is a wasteful number, since it uses less digits than its factorization.

40445433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 40445433 is about 6359.6723972230. The cubic root of 40445433 is about 343.2599722816.

Adding to 40445433 its reverse (33454404), we get a palindrome (73899837).

The spelling of 40445433 in words is "forty million, four hundred forty-five thousand, four hundred thirty-three".