742470 has 16 divisors (see below), whose sum is σ = 1782000. Its totient is φ = 197984.

The previous prime is 742457. The next prime is 742499. The reversal of 742470 is 74247.

It is a self number, because there is not a number n which added to its sum of digits gives 742470.

It is a congruent number.

It is an unprimeable number.

742470 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 7 ways as a sum of consecutive naturals, for example, 12345 + ... + 12404.

It is an arithmetic number, because the mean of its divisors is an integer number (111375).

2⁷⁴²⁴⁷⁰ is an apocalyptic number.

742470 is an abundant number, since it is smaller than the sum of its proper divisors (1039530).

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

742470 is a wasteful number, since it uses less digits than its factorization.

742470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24759.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 742470 is about 861.6669890393. Note that the first 3 decimals coincide. The cubic root of 742470 is about 90.5509414778.

The spelling of 742470 in words is "seven hundred forty-two thousand, four hundred seventy", and thus it is an iban number.