355904641 has 4 divisors (see below), whose sum is σ = 364585284. Its totient is φ = 347224000.

The previous prime is 355904621. The next prime is 355904657. The reversal of 355904641 is 146409553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146409553 = 9811 ⋅14923.

It can be written as a sum of positive squares in 2 ways, for example, as 90345025 + 265559616 = 9505^2 + 16296^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355904641 is a prime.

It is a super-2 number, since 2×355904641² = 253336226970677762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 355904641.

It is not an unprimeable number, because it can be changed into a prime (355904621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4340260 + ... + 4340341.

It is an arithmetic number, because the mean of its divisors is an integer number (91146321).

Almost surely, 2^355904641 is an apocalyptic number.

It is an amenable number.

355904641 is a deficient number, since it is larger than the sum of its proper divisors (8680643).

355904641 is an equidigital number, since it uses as much as digits as its factorization.

355904641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8680642.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 355904641 is about 18865.4350864219. The cubic root of 355904641 is about 708.6708194357.

The spelling of 355904641 in words is "three hundred fifty-five million, nine hundred four thousand, six hundred forty-one".