403428061 has 4 divisors (see below), whose sum is σ = 404962272. Its totient is φ = 401893852.

The previous prime is 403428049. The next prime is 403428143. The reversal of 403428061 is 160824304.

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 403428061 - 2⁵ = 403428029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403428661) 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, 766711 + ... + 767236.

It is an arithmetic number, because the mean of its divisors is an integer number (101240568).

Almost surely, 2^403428061 is an apocalyptic number.

It is an amenable number.

403428061 is a deficient number, since it is larger than the sum of its proper divisors (1534211).

403428061 is a wasteful number, since it uses less digits than its factorization.

403428061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534210.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 403428061 is about 20085.5186888464. The cubic root of 403428061 is about 738.9051626904.

The spelling of 403428061 in words is "four hundred three million, four hundred twenty-eight thousand, sixty-one".