1225204632 has 24 divisors (see below), whose sum is σ = 3318262740. Its totient is φ = 408401520.

The previous prime is 1225204619. The next prime is 1225204649. The reversal of 1225204632 is 2364025221.

It is a happy number.

1225204632 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 20 + 4 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1225204632² = 3002252780548510848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225204596 and 1225204605.

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, 8508294 + ... + 8508437.

Almost surely, 2^1225204632 is an apocalyptic number.

1225204632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225204632 is an abundant number, since it is smaller than the sum of its proper divisors (2093058108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225204632 is a wasteful number, since it uses less digits than its factorization.

1225204632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17016743 (or 17016736 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1225204632 is about 35002.9231922135. The cubic root of 1225204632 is about 1070.0470564800.

Adding to 1225204632 its reverse (2364025221), we get a palindrome (3589229853).

The spelling of 1225204632 in words is "one billion, two hundred twenty-five million, two hundred four thousand, six hundred thirty-two".