742423155 has 8 divisors (see below), whose sum is σ = 1187877072. Its totient is φ = 395959008.

The previous prime is 742423153. The next prime is 742423169. The reversal of 742423155 is 551324247.

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

It is not a de Polignac number, because 742423155 - 2¹ = 742423153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (742423153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24747424 + ... + 24747453.

It is an arithmetic number, because the mean of its divisors is an integer number (148484634).

Almost surely, 2^742423155 is an apocalyptic number.

742423155 is a deficient number, since it is larger than the sum of its proper divisors (445453917).

742423155 is a wasteful number, since it uses less digits than its factorization.

742423155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49494885.

The product of its digits is 33600, while the sum is 33.

The square root of 742423155 is about 27247.4430910498. The cubic root of 742423155 is about 905.4903704708.

The spelling of 742423155 in words is "seven hundred forty-two million, four hundred twenty-three thousand, one hundred fifty-five".