742480 has 20 divisors (see below), whose sum is σ = 1726452. Its totient is φ = 296960.

The previous prime is 742457. The next prime is 742499. The reversal of 742480 is 84247.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 258064 = 696^2 + 508^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

742480 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, 4561 + ... + 4720.

2⁷⁴²⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

742480 is an abundant number, since it is smaller than the sum of its proper divisors (983972).

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

742480 is a wasteful number, since it uses less digits than its factorization.

742480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9294 (or 9288 counting only the distinct ones).

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

The square root of 742480 is about 861.6727917255. The cubic root of 742480 is about 90.5513480062.

The spelling of 742480 in words is "seven hundred forty-two thousand, four hundred eighty".