40212403 has 8 divisors (see below), whose sum is σ = 50135040. Its totient is φ = 31334280.

The previous prime is 40212397. The next prime is 40212407. The reversal of 40212403 is 30421204.

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

It is a cyclic number.

It is not a de Polignac number, because 40212403 - 2⁵ = 40212371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40212407) 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, 261043 + ... + 261196.

It is an arithmetic number, because the mean of its divisors is an integer number (6266880).

Almost surely, 2^40212403 is an apocalyptic number.

40212403 is a deficient number, since it is larger than the sum of its proper divisors (9922637).

40212403 is a wasteful number, since it uses less digits than its factorization.

40212403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522257.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40212403 is about 6341.3250192684. The cubic root of 40212403 is about 342.5994610531.

Adding to 40212403 its reverse (30421204), we get a palindrome (70633607).

The spelling of 40212403 in words is "forty million, two hundred twelve thousand, four hundred three".