40002053 has 8 divisors (see below), whose sum is σ = 49233408. Its totient is φ = 31649904.

The previous prime is 40002043. The next prime is 40002073. The reversal of 40002053 is 35020004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-40002053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002023) 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, 219701 + ... + 219882.

It is an arithmetic number, because the mean of its divisors is an integer number (6154176).

Almost surely, 2^40002053 is an apocalyptic number.

It is an amenable number.

40002053 is a deficient number, since it is larger than the sum of its proper divisors (9231355).

40002053 is a wasteful number, since it uses less digits than its factorization.

40002053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439603.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 40002053 is about 6324.7176221552. The cubic root of 40002053 is about 342.0010402029.

Adding to 40002053 its reverse (35020004), we get a palindrome (75022057).

The spelling of 40002053 in words is "forty million, two thousand, fifty-three".