356421245 has 6 divisors (see below), whose sum is σ = 427756158. Its totient is φ = 285103224.

The previous prime is 356421227. The next prime is 356421251. The reversal of 356421245 is 542124653.

It can be written as a sum of positive squares in only one way, i.e., 285136996 + 71284249 = 16886^2 + 8443^2 .

It is not a de Polignac number, because 356421245 - 2⁶ = 356421181 is a prime.

It is a super-2 number, since 2×356421245² = 254072207774700050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37994 + ... + 46436.

It is an arithmetic number, because the mean of its divisors is an integer number (71292693).

Almost surely, 2^356421245 is an apocalyptic number.

It is an amenable number.

356421245 is a deficient number, since it is larger than the sum of its proper divisors (71334913).

356421245 is an frugal number, since it uses more digits than its factorization.

356421245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16891 (or 8448 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 356421245 is about 18879.1219340307. The cubic root of 356421245 is about 709.0135378170.

Adding to 356421245 its reverse (542124653), we get a palindrome (898545898).

The spelling of 356421245 in words is "three hundred fifty-six million, four hundred twenty-one thousand, two hundred forty-five".