742212750 has 64 divisors (see below), whose sum is σ = 1897826112. Its totient is φ = 193088000.

The previous prime is 742212749. The next prime is 742212769. The reversal of 742212750 is 57212247.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18682 + ... + 42818.

It is an arithmetic number, because the mean of its divisors is an integer number (29653533).

Almost surely, 2^742212750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742212750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948913056).

742212750 is an abundant number, since it is smaller than the sum of its proper divisors (1155613362).

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

742212750 is a wasteful number, since it uses less digits than its factorization.

742212750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24198 (or 24188 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 742212750 is about 27243.5818129702. The cubic root of 742212750 is about 905.4048228057.

Adding to 742212750 its reverse (57212247), we get a palindrome (799424997).

The spelling of 742212750 in words is "seven hundred forty-two million, two hundred twelve thousand, seven hundred fifty".