1426640252 has 12 divisors (see below), whose sum is σ = 2511571440. Its totient is φ = 709048416.

The previous prime is 1426640249. The next prime is 1426640269. The reversal of 1426640252 is 2520466241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067177 + ... + 1068512.

It is an arithmetic number, because the mean of its divisors is an integer number (209297620).

Almost surely, 2^1426640252 is an apocalyptic number.

It is an amenable number.

1426640252 is a deficient number, since it is larger than the sum of its proper divisors (1084931188).

1426640252 is a wasteful number, since it uses less digits than its factorization.

1426640252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135860 (or 2135858 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1426640252 is about 37770.8915965721. The cubic root of 1426640252 is about 1125.7401554352.

The spelling of 1426640252 in words is "one billion, four hundred twenty-six million, six hundred forty thousand, two hundred fifty-two".