354494057 has 4 divisors (see below), whose sum is σ = 366718020. Its totient is φ = 342270096.

The previous prime is 354494033. The next prime is 354494071. The reversal of 354494057 is 750494453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750494453 = 17597 ⋅42649.

It can be written as a sum of positive squares in 2 ways, for example, as 278088976 + 76405081 = 16676^2 + 8741^2 .

It is a cyclic number.

It is not a de Polignac number, because 354494057 - 2²⁰ = 353445481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354494857) 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, 6111938 + ... + 6111995.

It is an arithmetic number, because the mean of its divisors is an integer number (91679505).

Almost surely, 2^354494057 is an apocalyptic number.

It is an amenable number.

354494057 is a deficient number, since it is larger than the sum of its proper divisors (12223963).

354494057 is a wasteful number, since it uses less digits than its factorization.

354494057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12223962.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 354494057 is about 18828.0125610751. The cubic root of 354494057 is about 707.7333367799.

The spelling of 354494057 in words is "three hundred fifty-four million, four hundred ninety-four thousand, fifty-seven".