742268810 has 8 divisors (see below), whose sum is σ = 1336083876. Its totient is φ = 296907520.

The previous prime is 742268777. The next prime is 742268819. The reversal of 742268810 is 18862247.

It can be written as a sum of positive squares in 2 ways, for example, as 649281361 + 92987449 = 25481^2 + 9643^2 .

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

It is a super-2 number, since 2×742268810² = 1101925972597632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (742268819) 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, 37113431 + ... + 37113450.

Almost surely, 2^742268810 is an apocalyptic number.

742268810 is a deficient number, since it is larger than the sum of its proper divisors (593815066).

742268810 is a wasteful number, since it uses less digits than its factorization.

742268810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74226888.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 742268810 is about 27244.6106597250. The cubic root of 742268810 is about 905.4276175801.

The spelling of 742268810 in words is "seven hundred forty-two million, two hundred sixty-eight thousand, eight hundred ten".