740780 has 12 divisors (see below), whose sum is σ = 1555680. Its totient is φ = 296304.

The previous prime is 740749. The next prime is 740801. The reversal of 740780 is 87047.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18500 + ... + 18539.

It is an arithmetic number, because the mean of its divisors is an integer number (129640).

2⁷⁴⁰⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

740780 is an abundant number, since it is smaller than the sum of its proper divisors (814900).

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

740780 is a wasteful number, since it uses less digits than its factorization.

740780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37048 (or 37046 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 740780 is about 860.6857730903. The cubic root of 740780 is about 90.4821856820.

The spelling of 740780 in words is "seven hundred forty thousand, seven hundred eighty".