354131978 has 8 divisors (see below), whose sum is σ = 531282240. Its totient is φ = 177037900.

The previous prime is 354131977. The next prime is 354131993. The reversal of 354131978 is 879131453.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (354131971) 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 3 ways as a sum of consecutive naturals, for example, 9833 + ... + 28371.

It is an arithmetic number, because the mean of its divisors is an integer number (66410280).

Almost surely, 2^354131978 is an apocalyptic number.

354131978 is a deficient number, since it is larger than the sum of its proper divisors (177150262).

354131978 is a wasteful number, since it uses less digits than its factorization.

354131978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28092.

The product of its digits is 90720, while the sum is 41.

The square root of 354131978 is about 18818.3946711721. The cubic root of 354131978 is about 707.4922959035.

The spelling of 354131978 in words is "three hundred fifty-four million, one hundred thirty-one thousand, nine hundred seventy-eight".