403142401 has 4 divisors (see below), whose sum is σ = 403502512. Its totient is φ = 402782292.

The previous prime is 403142357. The next prime is 403142407. The reversal of 403142401 is 104241304.

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 403142401 - 2¹⁵ = 403109633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403142407) 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, 178371 + ... + 180616.

It is an arithmetic number, because the mean of its divisors is an integer number (100875628).

Almost surely, 2^403142401 is an apocalyptic number.

It is an amenable number.

403142401 is a deficient number, since it is larger than the sum of its proper divisors (360111).

403142401 is a wasteful number, since it uses less digits than its factorization.

403142401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360110.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 403142401 is about 20078.4063361612. The cubic root of 403142401 is about 738.7307197860.

Adding to 403142401 its reverse (104241304), we get a palindrome (507383705).

The spelling of 403142401 in words is "four hundred three million, one hundred forty-two thousand, four hundred one".