742823655 has 64 divisors (see below), whose sum is σ = 1415190528. Its totient is φ = 325624320.

The previous prime is 742823651. The next prime is 742823671. The reversal of 742823655 is 556328247.

It is not a de Polignac number, because 742823655 - 2² = 742823651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742823651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 274489 + ... + 277181.

It is an arithmetic number, because the mean of its divisors is an integer number (22112352).

Almost surely, 2^742823655 is an apocalyptic number.

742823655 is a deficient number, since it is larger than the sum of its proper divisors (672366873).

742823655 is a wasteful number, since it uses less digits than its factorization.

742823655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816.

The product of its digits is 403200, while the sum is 42.

The square root of 742823655 is about 27254.7914136212. The cubic root of 742823655 is about 905.6531633920.

The spelling of 742823655 in words is "seven hundred forty-two million, eight hundred twenty-three thousand, six hundred fifty-five".