1264742 has 4 divisors (see below), whose sum is σ = 1897116. Its totient is φ = 632370.

The previous prime is 1264741. The next prime is 1264763. The reversal of 1264742 is 2474621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2474621 = 673 ⋅3677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316184 + ... + 316187.

It is an arithmetic number, because the mean of its divisors is an integer number (474279).

2^1264742 is an apocalyptic number.

1264742 is a deficient number, since it is larger than the sum of its proper divisors (632374).

1264742 is an equidigital number, since it uses as much as digits as its factorization.

1264742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632373.

The product of its digits is 2688, while the sum is 26.

The square root of 1264742 is about 1124.6074870816. The cubic root of 1264742 is about 108.1435562392.

The spelling of 1264742 in words is "one million, two hundred sixty-four thousand, seven hundred forty-two".