1225242044 has 24 divisors (see below), whose sum is σ = 2314965408. Its totient is φ = 564062400.

The previous prime is 1225242023. The next prime is 1225242061. The reversal of 1225242044 is 4402425221.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9032 + ... + 50319.

It is an arithmetic number, because the mean of its divisors is an integer number (96456892).

Almost surely, 2^1225242044 is an apocalyptic number.

It is an amenable number.

1225242044 is a deficient number, since it is larger than the sum of its proper divisors (1089723364).

1225242044 is a wasteful number, since it uses less digits than its factorization.

1225242044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59765 (or 59763 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 1225242044 is about 35003.4576006428. The cubic root of 1225242044 is about 1070.0579477744.

Adding to 1225242044 its reverse (4402425221), we get a palindrome (5627667265).

The spelling of 1225242044 in words is "one billion, two hundred twenty-five million, two hundred forty-two thousand, forty-four".