742290755 has 4 divisors (see below), whose sum is σ = 890748912. Its totient is φ = 593832600.

The previous prime is 742290751. The next prime is 742290817. The reversal of 742290755 is 557092247.

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

It is not a de Polignac number, because 742290755 - 2² = 742290751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742290751) 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, 74229071 + ... + 74229080.

It is an arithmetic number, because the mean of its divisors is an integer number (222687228).

Almost surely, 2^742290755 is an apocalyptic number.

742290755 is a deficient number, since it is larger than the sum of its proper divisors (148458157).

742290755 is a wasteful number, since it uses less digits than its factorization.

742290755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148458156.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 742290755 is about 27245.0133969503. The cubic root of 742290755 is about 905.4365404092.

The spelling of 742290755 in words is "seven hundred forty-two million, two hundred ninety thousand, seven hundred fifty-five".