1225404026 has 24 divisors (see below), whose sum is σ = 2309028960. Its totient is φ = 477429480.

The previous prime is 1225404017. The next prime is 1225404029. The reversal of 1225404026 is 6204045221.

It is a junction number, because it is equal to n+sod(n) for n = 1225403986 and 1225404004.

It is not an unprimeable number, because it can be changed into a prime (1225404029) 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, 359996 + ... + 363383.

It is an arithmetic number, because the mean of its divisors is an integer number (96209540).

Almost surely, 2^1225404026 is an apocalyptic number.

1225404026 is a deficient number, since it is larger than the sum of its proper divisors (1083624934).

1225404026 is a wasteful number, since it uses less digits than its factorization.

1225404026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723410 (or 723399 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1225404026 is about 35005.7713241688. The cubic root of 1225404026 is about 1070.1051010395.

Adding to 1225404026 its reverse (6204045221), we get a palindrome (7429449247).

The spelling of 1225404026 in words is "one billion, two hundred twenty-five million, four hundred four thousand, twenty-six".