748942049 has 4 divisors (see below), whose sum is σ = 769183764. Its totient is φ = 728700336.

The previous prime is 748942037. The next prime is 748942063. The reversal of 748942049 is 940249847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 727273024 + 21669025 = 26968^2 + 4655^2 .

It is a cyclic number.

It is not a de Polignac number, because 748942049 - 2²⁰ = 747893473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 748941994 and 748942012.

It is not an unprimeable number, because it can be changed into a prime (748942349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10120802 + ... + 10120875.

It is an arithmetic number, because the mean of its divisors is an integer number (192295941).

Almost surely, 2^748942049 is an apocalyptic number.

It is an amenable number.

748942049 is a deficient number, since it is larger than the sum of its proper divisors (20241715).

748942049 is a wasteful number, since it uses less digits than its factorization.

748942049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20241714.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 748942049 is about 27366.8056046006. The cubic root of 748942049 is about 908.1328899311.

The spelling of 748942049 in words is "seven hundred forty-eight million, nine hundred forty-two thousand, forty-nine".