740422 has 8 divisors (see below), whose sum is σ = 1116000. Its totient is φ = 368424.

The previous prime is 740387. The next prime is 740423. The reversal of 740422 is 224047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 740422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740423) by changing a digit.

740422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297 + ... + 1252.

It is an arithmetic number, because the mean of its divisors is an integer number (139500).

2⁷⁴⁰⁴²² is an apocalyptic number.

740422 is a deficient number, since it is larger than the sum of its proper divisors (375578).

740422 is a wasteful number, since it uses less digits than its factorization.

740422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 740422 is about 860.4777742626. The cubic root of 740422 is about 90.4676074257.

Adding to 740422 its reverse (224047), we get a palindrome (964469).

The spelling of 740422 in words is "seven hundred forty thousand, four hundred twenty-two", and thus it is an iban number.