1460640749 has 4 divisors (see below), whose sum is σ = 1500117564. Its totient is φ = 1421163936.

The previous prime is 1460640743. The next prime is 1460640763. The reversal of 1460640749 is 9470460641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9470460641 = 3203 ⋅2956747.

It can be written as a sum of positive squares in 2 ways, for example, as 807582724 + 653058025 = 28418^2 + 25555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1460640749 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 (1460640743) 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, 19738352 + ... + 19738425.

It is an arithmetic number, because the mean of its divisors is an integer number (375029391).

Almost surely, 2^1460640749 is an apocalyptic number.

It is an amenable number.

1460640749 is a deficient number, since it is larger than the sum of its proper divisors (39476815).

1460640749 is an equidigital number, since it uses as much as digits as its factorization.

1460640749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39476814.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1460640749 is about 38218.3300132279. The cubic root of 1460640749 is about 1134.6131277355.

It can be divided in two parts, 14606 and 40749, that added together give a palindrome (55355).

The spelling of 1460640749 in words is "one billion, four hundred sixty million, six hundred forty thousand, seven hundred forty-nine".