742811421 has 8 divisors (see below), whose sum is σ = 1080453024. Its totient is φ = 450188720.

The previous prime is 742811411. The next prime is 742811437. The reversal of 742811421 is 124118247.

742811421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 742811421 - 2⁵ = 742811389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742811401) 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, 11254686 + ... + 11254751.

It is an arithmetic number, because the mean of its divisors is an integer number (135056628).

Almost surely, 2^742811421 is an apocalyptic number.

It is an amenable number.

742811421 is a deficient number, since it is larger than the sum of its proper divisors (337641603).

742811421 is a wasteful number, since it uses less digits than its factorization.

742811421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22509451.

The product of its digits is 3584, while the sum is 30.

The square root of 742811421 is about 27254.5669750961. The cubic root of 742811421 is about 905.6481914531.

Adding to 742811421 its reverse (124118247), we get a palindrome (866929668).

The spelling of 742811421 in words is "seven hundred forty-two million, eight hundred eleven thousand, four hundred twenty-one".