402645003 has 4 divisors (see below), whose sum is σ = 536860008. Its totient is φ = 268430000.

The previous prime is 402644981. The next prime is 402645007. The reversal of 402645003 is 300546204.

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 402645003 - 2⁸ = 402644747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402645007) 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, 67107498 + ... + 67107503.

It is an arithmetic number, because the mean of its divisors is an integer number (134215002).

Almost surely, 2^402645003 is an apocalyptic number.

402645003 is a deficient number, since it is larger than the sum of its proper divisors (134215005).

402645003 is a wasteful number, since it uses less digits than its factorization.

402645003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134215004.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 402645003 is about 20066.0161217916. The cubic root of 402645003 is about 738.4267788769.

The spelling of 402645003 in words is "four hundred two million, six hundred forty-five thousand, three".