740235321 has 32 divisors (see below), whose sum is σ = 1257031680. Its totient is φ = 421735248.

The previous prime is 740235317. The next prime is 740235337. The reversal of 740235321 is 123532047.

It is not a de Polignac number, because 740235321 - 2² = 740235317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (740235311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59940 + ... + 71226.

It is an arithmetic number, because the mean of its divisors is an integer number (39282240).

Almost surely, 2^740235321 is an apocalyptic number.

It is an amenable number.

740235321 is a deficient number, since it is larger than the sum of its proper divisors (516796359).

740235321 is a wasteful number, since it uses less digits than its factorization.

740235321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11650 (or 11644 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 740235321 is about 27207.2659596660. The cubic root of 740235321 is about 904.6000373391.

Adding to 740235321 its reverse (123532047), we get a palindrome (863767368).

The spelling of 740235321 in words is "seven hundred forty million, two hundred thirty-five thousand, three hundred twenty-one".