740628 has 36 divisors (see below), whose sum is σ = 2140320. Its totient is φ = 211536.

The previous prime is 740603. The next prime is 740651. The reversal of 740628 is 826047.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1218 + ... + 1721.

2⁷⁴⁰⁶²⁸ is an apocalyptic number.

It is an amenable number.

740628 is an abundant number, since it is smaller than the sum of its proper divisors (1399692).

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

740628 is a wasteful number, since it uses less digits than its factorization.

740628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 740628 is about 860.5974668798. The cubic root of 740628 is about 90.4759966051.

The spelling of 740628 in words is "seven hundred forty thousand, six hundred twenty-eight".