742020 has 48 divisors (see below), whose sum is σ = 2116800. Its totient is φ = 194176.

The previous prime is 742009. The next prime is 742031. The reversal of 742020 is 20247.

It is an interprime number because it is at equal distance from previous prime (742009) and next prime (742031).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 742020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4906 + ... + 5054.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2⁷⁴²⁰²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058400).

742020 is an abundant number, since it is smaller than the sum of its proper divisors (1374780).

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

742020 is a wasteful number, since it uses less digits than its factorization.

742020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 742020 is about 861.4058277026. The cubic root of 742020 is about 90.5326439221.

Adding to 742020 its reverse (20247), we get a palindrome (762267).

The spelling of 742020 in words is "seven hundred forty-two thousand, twenty", and thus it is an iban number.