740227640 has 16 divisors (see below), whose sum is σ = 1665512280. Its totient is φ = 296091040.

The previous prime is 740227613. The next prime is 740227643. The reversal of 740227640 is 46722047.

It is a junction number, because it is equal to n+sod(n) for n = 740227597 and 740227606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740227643) 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, 9252806 + ... + 9252885.

Almost surely, 2^740227640 is an apocalyptic number.

It is an amenable number.

740227640 is an abundant number, since it is smaller than the sum of its proper divisors (925284640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740227640 is a wasteful number, since it uses less digits than its factorization.

740227640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18505702 (or 18505698 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 740227640 is about 27207.1248021543. The cubic root of 740227640 is about 904.5969084887.

Adding to 740227640 its reverse (46722047), we get a palindrome (786949687).

The spelling of 740227640 in words is "seven hundred forty million, two hundred twenty-seven thousand, six hundred forty".