40213033 has 4 divisors (see below), whose sum is σ = 45957760. Its totient is φ = 34468308.

The previous prime is 40213027. The next prime is 40213057. The reversal of 40213033 is 33031204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40213033 - 2⁵ = 40213001 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 40212998 and 40213016.

It is not an unprimeable number, because it can be changed into a prime (40213073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2872353 + ... + 2872366.

It is an arithmetic number, because the mean of its divisors is an integer number (11489440).

Almost surely, 2^40213033 is an apocalyptic number.

It is an amenable number.

40213033 is a deficient number, since it is larger than the sum of its proper divisors (5744727).

40213033 is an equidigital number, since it uses as much as digits as its factorization.

40213033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744726.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 40213033 is about 6341.3746932349. The cubic root of 40213033 is about 342.6012501904.

Adding to 40213033 its reverse (33031204), we get a palindrome (73244237).

The spelling of 40213033 in words is "forty million, two hundred thirteen thousand, thirty-three".