1225404350 has 24 divisors (see below), whose sum is σ = 2378352240. Its totient is φ = 468849920.

The previous prime is 1225404343. The next prime is 1225404359. The reversal of 1225404350 is 534045221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225404359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531635 + ... + 533934.

It is an arithmetic number, because the mean of its divisors is an integer number (99098010).

Almost surely, 2^1225404350 is an apocalyptic number.

1225404350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225404350 is a deficient number, since it is larger than the sum of its proper divisors (1152947890).

1225404350 is a wasteful number, since it uses less digits than its factorization.

1225404350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065604 (or 1065599 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1225404350 is about 35005.7759519768. The cubic root of 1225404350 is about 1070.1051953524.

Adding to 1225404350 its reverse (534045221), we get a palindrome (1759449571).

The spelling of 1225404350 in words is "one billion, two hundred twenty-five million, four hundred four thousand, three hundred fifty".