740428 has 24 divisors (see below), whose sum is σ = 1446480. Its totient is φ = 329280.

The previous prime is 740423. The next prime is 740429. The reversal of 740428 is 824047.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (60270).

2⁷⁴⁰⁴²⁸ is an apocalyptic number.

It is an amenable number.

740428 is a deficient number, since it is larger than the sum of its proper divisors (706052).

740428 is a wasteful number, since it uses less digits than its factorization.

740428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 740428 is about 860.4812606908. The cubic root of 740428 is about 90.4678517927.

The spelling of 740428 in words is "seven hundred forty thousand, four hundred twenty-eight".