354740749 has 4 divisors (see below), whose sum is σ = 386989920. Its totient is φ = 322491580.

The previous prime is 354740747. The next prime is 354740759. The reversal of 354740749 is 947047453.

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: 947047453 = 11 ⋅86095223.

It is a cyclic number.

It is not a de Polignac number, because 354740749 - 2¹ = 354740747 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 (354740747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16124569 + ... + 16124590.

It is an arithmetic number, because the mean of its divisors is an integer number (96747480).

Almost surely, 2^354740749 is an apocalyptic number.

It is an amenable number.

354740749 is a deficient number, since it is larger than the sum of its proper divisors (32249171).

354740749 is a wasteful number, since it uses less digits than its factorization.

354740749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32249170.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 354740749 is about 18834.5626176983. The cubic root of 354740749 is about 707.8974689799.

The spelling of 354740749 in words is "three hundred fifty-four million, seven hundred forty thousand, seven hundred forty-nine".