740220231 has 4 divisors (see below), whose sum is σ = 986960312. Its totient is φ = 493480152.

The previous prime is 740220223. The next prime is 740220241. The reversal of 740220231 is 132022047.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 740220231 - 2³ = 740220223 is a prime.

It is a super-2 number, since 2×740220231² = 1095851980763386722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 740220198 and 740220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740220241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123370036 + ... + 123370041.

It is an arithmetic number, because the mean of its divisors is an integer number (246740078).

Almost surely, 2^740220231 is an apocalyptic number.

740220231 is a deficient number, since it is larger than the sum of its proper divisors (246740081).

740220231 is a wasteful number, since it uses less digits than its factorization.

740220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246740080.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 740220231 is about 27206.9886426264. The cubic root of 740220231 is about 904.5938904167.

Adding to 740220231 its reverse (132022047), we get a palindrome (872242278).

The spelling of 740220231 in words is "seven hundred forty million, two hundred twenty thousand, two hundred thirty-one".