40420003 has 8 divisors (see below), whose sum is σ = 44243696. Its totient is φ = 36698400.

The previous prime is 40419991. The next prime is 40420007. The reversal of 40420003 is 30002404.

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 40420003 - 2²⁵ = 6865571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40420007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24693 + ... + 26278.

It is an arithmetic number, because the mean of its divisors is an integer number (5530462).

Almost surely, 2^40420003 is an apocalyptic number.

40420003 is a deficient number, since it is larger than the sum of its proper divisors (3823693).

40420003 is a wasteful number, since it uses less digits than its factorization.

40420003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51045.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40420003 is about 6357.6727660363. The cubic root of 40420003 is about 343.1880158161.

Adding to 40420003 its reverse (30002404), we get a palindrome (70422407).

The spelling of 40420003 in words is "forty million, four hundred twenty thousand, three".