403402001 has 4 divisors (see below), whose sum is σ = 403686912. Its totient is φ = 403117092.

The previous prime is 403401989. The next prime is 403402003. The reversal of 403402001 is 100204304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403402001 - 2⁶ = 403401937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403402003) 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, 140321 + ... + 143166.

It is an arithmetic number, because the mean of its divisors is an integer number (100921728).

Almost surely, 2^403402001 is an apocalyptic number.

It is an amenable number.

403402001 is a deficient number, since it is larger than the sum of its proper divisors (284911).

403402001 is a wasteful number, since it uses less digits than its factorization.

403402001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284910.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 403402001 is about 20084.8699522800. The cubic root of 403402001 is about 738.8892521435.

Adding to 403402001 its reverse (100204304), we get a palindrome (503606305).

The spelling of 403402001 in words is "four hundred three million, four hundred two thousand, one".