354437661 has 16 divisors (see below), whose sum is σ = 487827648. Its totient is φ = 228758400.

The previous prime is 354437653. The next prime is 354437683. The reversal of 354437661 is 166734453.

It is not a de Polignac number, because 354437661 - 2³ = 354437653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354437621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5115 + ... + 27111.

It is an arithmetic number, because the mean of its divisors is an integer number (30489228).

Almost surely, 2^354437661 is an apocalyptic number.

It is an amenable number.

354437661 is a deficient number, since it is larger than the sum of its proper divisors (133389987).

354437661 is a wasteful number, since it uses less digits than its factorization.

354437661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22172.

The product of its digits is 181440, while the sum is 39.

The square root of 354437661 is about 18826.5148394492. The cubic root of 354437661 is about 707.6958039964.

The spelling of 354437661 in words is "three hundred fifty-four million, four hundred thirty-seven thousand, six hundred sixty-one".