354001994 has 4 divisors (see below), whose sum is σ = 531002994. Its totient is φ = 177000996.

The previous prime is 354001981. The next prime is 354001997. The reversal of 354001994 is 499100453.

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., 352951369 + 1050625 = 18787^2 + 1025^2 .

It is not an unprimeable number, because it can be changed into a prime (354001997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88500497 + ... + 88500500.

Almost surely, 2^354001994 is an apocalyptic number.

354001994 is a deficient number, since it is larger than the sum of its proper divisors (177001000).

354001994 is a wasteful number, since it uses less digits than its factorization.

354001994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177000999.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 354001994 is about 18814.9407121043. The cubic root of 354001994 is about 707.4057237230.

The spelling of 354001994 in words is "three hundred fifty-four million, one thousand, nine hundred ninety-four".