1249064766 has 32 divisors (see below), whose sum is σ = 2938978080. Its totient is φ = 391863168.

The previous prime is 1249064737. The next prime is 1249064767. The reversal of 1249064766 is 6674609421.

It is a Smith number, since the sum of its digits (45) 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 (1249064767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679401 + ... + 681236.

It is an arithmetic number, because the mean of its divisors is an integer number (91843065).

Almost surely, 2^1249064766 is an apocalyptic number.

1249064766 is an abundant number, since it is smaller than the sum of its proper divisors (1689913314).

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

1249064766 is a wasteful number, since it uses less digits than its factorization.

1249064766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360665 (or 1360659 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 1249064766 is about 35342.1103784140. The cubic root of 1249064766 is about 1076.9486245773.

The spelling of 1249064766 in words is "one billion, two hundred forty-nine million, sixty-four thousand, seven hundred sixty-six".