1244064550 has 24 divisors (see below), whose sum is σ = 2315010312. Its totient is φ = 497400000.

The previous prime is 1244064541. The next prime is 1244064551. The reversal of 1244064550 is 554604421.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244064551) 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, 145905 + ... + 154195.

It is an arithmetic number, because the mean of its divisors is an integer number (96458763).

Almost surely, 2^1244064550 is an apocalyptic number.

1244064550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1244064550 is a deficient number, since it is larger than the sum of its proper divisors (1070945762).

1244064550 is a wasteful number, since it uses less digits than its factorization.

1244064550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304 (or 11299 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 1244064550 is about 35271.2992388996. The cubic root of 1244064550 is about 1075.5096339640.

Adding to 1244064550 its reverse (554604421), we get a palindrome (1798668971).

The spelling of 1244064550 in words is "one billion, two hundred forty-four million, sixty-four thousand, five hundred fifty".