1456340749 has 4 divisors (see below), whose sum is σ = 1519659936. Its totient is φ = 1393021564.

The previous prime is 1456340741. The next prime is 1456340759. The reversal of 1456340749 is 9470436541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9470436541 = 9137 ⋅1036493.

It is a cyclic number.

It is not a de Polignac number, because 1456340749 - 2³ = 1456340741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456340741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31659559 + ... + 31659604.

It is an arithmetic number, because the mean of its divisors is an integer number (379914984).

Almost surely, 2^1456340749 is an apocalyptic number.

It is an amenable number.

1456340749 is a deficient number, since it is larger than the sum of its proper divisors (63319187).

1456340749 is an equidigital number, since it uses as much as digits as its factorization.

1456340749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63319186.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 1456340749 is about 38162.0328205928. The cubic root of 1456340749 is about 1133.4986323967.

The spelling of 1456340749 in words is "one billion, four hundred fifty-six million, three hundred forty thousand, seven hundred forty-nine".