748217442 has 64 divisors (see below), whose sum is σ = 1741872384. Its totient is φ = 209848320.

The previous prime is 748217419. The next prime is 748217467. The reversal of 748217442 is 244712847.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 748217442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 848842 + ... + 849722.

It is an arithmetic number, because the mean of its divisors is an integer number (27216756).

Almost surely, 2^748217442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 748217442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870936192).

748217442 is an abundant number, since it is smaller than the sum of its proper divisors (993654942).

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

748217442 is a wasteful number, since it uses less digits than its factorization.

748217442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243.

The product of its digits is 100352, while the sum is 39.

The square root of 748217442 is about 27353.5636069599. The cubic root of 748217442 is about 907.8399203200.

The spelling of 748217442 in words is "seven hundred forty-eight million, two hundred seventeen thousand, four hundred forty-two".