1246422740 has 24 divisors (see below), whose sum is σ = 2618828520. Its totient is φ = 498313728.

The previous prime is 1246422713. The next prime is 1246422773. The reversal of 1246422740 is 472246421.

It can be written as a sum of positive squares in 4 ways, for example, as 287777296 + 958645444 = 16964^2 + 30962^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1246422697 and 1246422706.

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, 26864 + ... + 56696.

It is an arithmetic number, because the mean of its divisors is an integer number (109117855).

Almost surely, 2^1246422740 is an apocalyptic number.

1246422740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1246422740 is an abundant number, since it is smaller than the sum of its proper divisors (1372405780).

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

1246422740 is a wasteful number, since it uses less digits than its factorization.

1246422740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31931 (or 31929 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 1246422740 is about 35304.7127165765. The cubic root of 1246422740 is about 1076.1887667880.

The spelling of 1246422740 in words is "one billion, two hundred forty-six million, four hundred twenty-two thousand, seven hundred forty".