748645042 has 8 divisors (see below), whose sum is σ = 1123084656. Its totient is φ = 374283492.

The previous prime is 748645033. The next prime is 748645043. The reversal of 748645042 is 240546847.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×748645042² = 1120938797822363528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 748644986 and 748645004.

It is not an unprimeable number, because it can be changed into a prime (748645043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22893 + ... + 44959.

It is an arithmetic number, because the mean of its divisors is an integer number (140385582).

Almost surely, 2^748645042 is an apocalyptic number.

748645042 is a deficient number, since it is larger than the sum of its proper divisors (374439614).

748645042 is a wasteful number, since it uses less digits than its factorization.

748645042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39032.

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 748645042 is about 27361.3786567856. The cubic root of 748645042 is about 908.0128283554.

The spelling of 748645042 in words is "seven hundred forty-eight million, six hundred forty-five thousand, forty-two".