742361 has 4 divisors (see below), whose sum is σ = 744192. Its totient is φ = 740532.

The previous prime is 742351. The next prime is 742369. The reversal of 742361 is 163247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 163247 = 7 ⋅23321.

It is a cyclic number.

It is not a de Polignac number, because 742361 - 2¹⁰ = 741337 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7⁵ + 4⁷ + 3¹² + 2¹⁷ + 6⁶ + 1 .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (742369) 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, 5 + ... + 1218.

It is an arithmetic number, because the mean of its divisors is an integer number (186048).

2⁷⁴²³⁶¹ is an apocalyptic number.

It is an amenable number.

742361 is a deficient number, since it is larger than the sum of its proper divisors (1831).

742361 is a wasteful number, since it uses less digits than its factorization.

742361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830.

The product of its digits is 1008, while the sum is 23.

The square root of 742361 is about 861.6037372249. The cubic root of 742361 is about 90.5465100819.

The spelling of 742361 in words is "seven hundred forty-two thousand, three hundred sixty-one".