748181439 has 6 divisors (see below), whose sum is σ = 1080706536. Its totient is φ = 498787620.

The previous prime is 748181393. The next prime is 748181461. The reversal of 748181439 is 934181847.

It is a happy number.

It is not a de Polignac number, because 748181439 - 2¹⁹ = 747657151 is a prime.

It is a super-2 number, since 2×748181439² = 1119550931328221442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 748181394 and 748181403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748189439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41565627 + ... + 41565644.

It is an arithmetic number, because the mean of its divisors is an integer number (180117756).

Almost surely, 2^748181439 is an apocalyptic number.

748181439 is a deficient number, since it is larger than the sum of its proper divisors (332525097).

748181439 is a wasteful number, since it uses less digits than its factorization.

748181439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83131277 (or 83131274 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 748181439 is about 27352.9054946636. The cubic root of 748181439 is about 907.8253588289.

The spelling of 748181439 in words is "seven hundred forty-eight million, one hundred eighty-one thousand, four hundred thirty-nine".