1264978 has 16 divisors (see below), whose sum is σ = 2229696. Its totient is φ = 530640.

The previous prime is 1264969. The next prime is 1264979. The reversal of 1264978 is 8794621.

It is not an unprimeable number, because it can be changed into a prime (1264979) 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, 1926 + ... + 2497.

It is an arithmetic number, because the mean of its divisors is an integer number (139356).

2^1264978 is an apocalyptic number.

1264978 is a deficient number, since it is larger than the sum of its proper divisors (964718).

1264978 is a wasteful number, since it uses less digits than its factorization.

1264978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449.

The product of its digits is 24192, while the sum is 37.

The square root of 1264978 is about 1124.7124076847. The cubic root of 1264978 is about 108.1502823256.

The spelling of 1264978 in words is "one million, two hundred sixty-four thousand, nine hundred seventy-eight".