740646 has 24 divisors (see below), whose sum is σ = 1675440. Its totient is φ = 236016.

The previous prime is 740603. The next prime is 740651. The reversal of 740646 is 646047.

740646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×740646³ = 1218858526533318408, which contains 333 as substring.

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, 481 + ... + 1308.

It is an arithmetic number, because the mean of its divisors is an integer number (69810).

2⁷⁴⁰⁶⁴⁶ is an apocalyptic number.

740646 is an abundant number, since it is smaller than the sum of its proper divisors (934794).

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

740646 is a wasteful number, since it uses less digits than its factorization.

740646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1817 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 740646 is about 860.6079246672. The cubic root of 740646 is about 90.4767295663.

The spelling of 740646 in words is "seven hundred forty thousand, six hundred forty-six".