742350 has 72 divisors (see below), whose sum is σ = 2162808. Its totient is φ = 168000.

The previous prime is 742333. The next prime is 742351. The reversal of 742350 is 53247.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742351) by changing a digit.

742350 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 35 ways as a sum of consecutive naturals, for example, 7300 + ... + 7400.

It is an arithmetic number, because the mean of its divisors is an integer number (30039).

2⁷⁴²³⁵⁰ is an apocalyptic number.

742350 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 742350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081404).

742350 is an abundant number, since it is smaller than the sum of its proper divisors (1420458).

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

742350 is a wasteful number, since it uses less digits than its factorization.

742350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 742350 is about 861.5973537564. The cubic root of 742350 is about 90.5460628527.

Adding to 742350 its sum of digits (21), we get a triangular number (742371 = T₁₂₁₈).

Adding to 742350 its reverse (53247), we get a palindrome (795597).

The spelling of 742350 in words is "seven hundred forty-two thousand, three hundred fifty".