1225460450 has 12 divisors (see below), whose sum is σ = 2279356530. Its totient is φ = 490184160.

The previous prime is 1225460449. The next prime is 1225460459. The reversal of 1225460450 is 540645221.

It can be written as a sum of positive squares in 3 ways, for example, as 541167169 + 684293281 = 23263^2 + 26159^2 .

It is not an unprimeable number, because it can be changed into a prime (1225460459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12254555 + ... + 12254654.

Almost surely, 2^1225460450 is an apocalyptic number.

1225460450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225460450 is a deficient number, since it is larger than the sum of its proper divisors (1053896080).

1225460450 is a wasteful number, since it uses less digits than its factorization.

1225460450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24509221 (or 24509216 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1225460450 is about 35006.5772391418. The cubic root of 1225460450 is about 1070.1215251963.

The spelling of 1225460450 in words is "one billion, two hundred twenty-five million, four hundred sixty thousand, four hundred fifty".