1286374652 has 24 divisors (see below), whose sum is σ = 2272302480. Its totient is φ = 637165440.

The previous prime is 1286374591. The next prime is 1286374657. The reversal of 1286374652 is 2564736821.

It is a super-2 number, since 2×1286374652² = 3309519490616242208, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286374657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294299 + ... + 298637.

It is an arithmetic number, because the mean of its divisors is an integer number (94679270).

Almost surely, 2^1286374652 is an apocalyptic number.

It is an amenable number.

1286374652 is a deficient number, since it is larger than the sum of its proper divisors (985927828).

1286374652 is a wasteful number, since it uses less digits than its factorization.

1286374652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021 (or 5019 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 1286374652 is about 35866.0654658411. The cubic root of 1286374652 is about 1087.5665072639.

The spelling of 1286374652 in words is "one billion, two hundred eighty-six million, three hundred seventy-four thousand, six hundred fifty-two".