740370073 has 4 divisors (see below), whose sum is σ = 740516788. Its totient is φ = 740223360.

The previous prime is 740370041. The next prime is 740370079. The reversal of 740370073 is 370073047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370073047 = 127 ⋅2913961.

It can be written as a sum of positive squares in 2 ways, for example, as 632874649 + 107495424 = 25157^2 + 10368^2 .

It is a cyclic number.

It is not a de Polignac number, because 740370073 - 2⁵ = 740370041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740370079) 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, 65508 + ... + 75973.

It is an arithmetic number, because the mean of its divisors is an integer number (185129197).

Almost surely, 2^740370073 is an apocalyptic number.

It is an amenable number.

740370073 is a deficient number, since it is larger than the sum of its proper divisors (146715).

740370073 is a wasteful number, since it uses less digits than its factorization.

740370073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146714.

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 740370073 is about 27209.7422442771. The cubic root of 740370073 is about 904.6549249606.

The spelling of 740370073 in words is "seven hundred forty million, three hundred seventy thousand, seventy-three".