354031906 has 4 divisors (see below), whose sum is σ = 531047862. Its totient is φ = 177015952.

The previous prime is 354031903. The next prime is 354031933. The reversal of 354031906 is 609130453.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 284225881 + 69806025 = 16859^2 + 8355^2 .

It is not an unprimeable number, because it can be changed into a prime (354031903) 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 as a sum of consecutive naturals, namely, 88507975 + ... + 88507978.

Almost surely, 2^354031906 is an apocalyptic number.

354031906 is a deficient number, since it is larger than the sum of its proper divisors (177015956).

354031906 is a wasteful number, since it uses less digits than its factorization.

354031906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177015955.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 354031906 is about 18815.7355955062. The cubic root of 354031906 is about 707.4256476448.

The spelling of 354031906 in words is "three hundred fifty-four million, thirty-one thousand, nine hundred six".