356489421 has 4 divisors (see below), whose sum is σ = 475319232. Its totient is φ = 237659612.

The previous prime is 356489363. The next prime is 356489423. The reversal of 356489421 is 124984653.

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 a de Polignac number, because none of the positive numbers 2^k-356489421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356489423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59414901 + ... + 59414906.

It is an arithmetic number, because the mean of its divisors is an integer number (118829808).

Almost surely, 2^356489421 is an apocalyptic number.

It is an amenable number.

356489421 is a deficient number, since it is larger than the sum of its proper divisors (118829811).

356489421 is a wasteful number, since it uses less digits than its factorization.

356489421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118829810.

The product of its digits is 207360, while the sum is 42.

The square root of 356489421 is about 18880.9274401445. The cubic root of 356489421 is about 709.0587414685.

The spelling of 356489421 in words is "three hundred fifty-six million, four hundred eighty-nine thousand, four hundred twenty-one".