405225214 has 4 divisors (see below), whose sum is σ = 607837824. Its totient is φ = 202612606.

The previous prime is 405225169. The next prime is 405225229. The reversal of 405225214 is 412522504.

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

It is a super-2 number, since 2×405225214² = 328414948122691592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101306302 + ... + 101306305.

It is an arithmetic number, because the mean of its divisors is an integer number (151959456).

Almost surely, 2^405225214 is an apocalyptic number.

405225214 is a deficient number, since it is larger than the sum of its proper divisors (202612610).

405225214 is a wasteful number, since it uses less digits than its factorization.

405225214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202612609.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 405225214 is about 20130.2065066407. The cubic root of 405225214 is about 740.0007389815. Note that the first 3 decimals are identical.

Adding to 405225214 its reverse (412522504), we get a palindrome (817747718).

The spelling of 405225214 in words is "four hundred five million, two hundred twenty-five thousand, two hundred fourteen".