40102003 has 4 divisors (see below), whose sum is σ = 41395648. Its totient is φ = 38808360.

The previous prime is 40102001. The next prime is 40102033. The reversal of 40102003 is 30020104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40102003 - 2¹ = 40102001 is a prime.

It is a super-2 number, since 2×40102003² = 3216341289224018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40102001) 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, 646776 + ... + 646837.

It is an arithmetic number, because the mean of its divisors is an integer number (10348912).

Almost surely, 2^40102003 is an apocalyptic number.

40102003 is a deficient number, since it is larger than the sum of its proper divisors (1293645).

40102003 is a wasteful number, since it uses less digits than its factorization.

40102003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293644.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 40102003 is about 6332.6142311055. The cubic root of 40102003 is about 342.2856470396.

Adding to 40102003 its reverse (30020104), we get a palindrome (70122107).

The spelling of 40102003 in words is "forty million, one hundred two thousand, three".