354311409 has 4 divisors (see below), whose sum is σ = 472415216. Its totient is φ = 236207604.

The previous prime is 354311407. The next prime is 354311423. The reversal of 354311409 is 904113453.

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, and also an emirpimes, since its reverse is a distinct semiprime: 904113453 = 3 ⋅301371151.

It is not a de Polignac number, because 354311409 - 2¹ = 354311407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354311407) 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, 59051899 + ... + 59051904.

It is an arithmetic number, because the mean of its divisors is an integer number (118103804).

Almost surely, 2^354311409 is an apocalyptic number.

It is an amenable number.

354311409 is a deficient number, since it is larger than the sum of its proper divisors (118103807).

354311409 is a wasteful number, since it uses less digits than its factorization.

354311409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118103806.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 354311409 is about 18823.1615038495. The cubic root of 354311409 is about 707.6117660670.

The spelling of 354311409 in words is "three hundred fifty-four million, three hundred eleven thousand, four hundred nine".