740302489 has 4 divisors (see below), whose sum is σ = 744392740. Its totient is φ = 736212240.

The previous prime is 740302471. The next prime is 740302501. The reversal of 740302489 is 984203047.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 984203047 = 691 ⋅1424317.

It can be written as a sum of positive squares in 2 ways, for example, as 7246864 + 733055625 = 2692^2 + 27075^2 .

It is a cyclic number.

It is not a de Polignac number, because 740302489 - 2⁷ = 740302361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740302469) 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, 2044854 + ... + 2045215.

It is an arithmetic number, because the mean of its divisors is an integer number (186098185).

Almost surely, 2^740302489 is an apocalyptic number.

It is an amenable number.

740302489 is a deficient number, since it is larger than the sum of its proper divisors (4090251).

740302489 is a wasteful number, since it uses less digits than its factorization.

740302489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090250.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 740302489 is about 27208.5003078082. The cubic root of 740302489 is about 904.6273972592.

The spelling of 740302489 in words is "seven hundred forty million, three hundred two thousand, four hundred eighty-nine".