353540394 has 36 divisors (see below), whose sum is σ = 771564066. Its totient is φ = 116997264.

The previous prime is 353540389. The next prime is 353540423. The reversal of 353540394 is 493045353.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 353252025 + 288369 = 18795^2 + 537^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 576432 + ... + 577044.

Almost surely, 2^353540394 is an apocalyptic number.

353540394 is an abundant number, since it is smaller than the sum of its proper divisors (418023672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

353540394 is a wasteful number, since it uses less digits than its factorization.

353540394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The square root of 353540394 is about 18802.6698636125. The cubic root of 353540394 is about 707.0981166849.

The spelling of 353540394 in words is "three hundred fifty-three million, five hundred forty thousand, three hundred ninety-four".