338754421 has 2 divisors, whose sum is σ = 338754422. Its totient is φ = 338754420.

The previous prime is 338754389. The next prime is 338754431. The reversal of 338754421 is 124457833.

338754421 = 13014² + 13015².

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169390225 + 169364196 = 13015^2 + 13014^2 .

It is a cyclic number.

It is not a de Polignac number, because 338754421 - 2⁵ = 338754389 is a prime.

It is a super-2 number, since 2×338754421² = 229509115494090482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338754431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169377210 + 169377211.

It is an arithmetic number, because the mean of its divisors is an integer number (169377211).

Almost surely, 2^338754421 is an apocalyptic number.

338754421 is the 13015-th centered square number.

It is an amenable number.

338754421 is a deficient number, since it is larger than the sum of its proper divisors (1).

338754421 is an equidigital number, since it uses as much as digits as its factorization.

338754421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 338754421 is about 18405.2824210877. The cubic root of 338754421 is about 697.0998521029.

The spelling of 338754421 in words is "three hundred thirty-eight million, seven hundred fifty-four thousand, four hundred twenty-one".