741644421 has 8 divisors (see below), whose sum is σ = 1130124864. Its totient is φ = 423796800.

The previous prime is 741644419. The next prime is 741644447. The reversal of 741644421 is 124446147.

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

It is not a de Polignac number, because 741644421 - 2¹ = 741644419 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (741644411) 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, 17658180 + ... + 17658221.

It is an arithmetic number, because the mean of its divisors is an integer number (141265608).

Almost surely, 2^741644421 is an apocalyptic number.

It is an amenable number.

741644421 is a deficient number, since it is larger than the sum of its proper divisors (388480443).

741644421 is a wasteful number, since it uses less digits than its factorization.

741644421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35316411.

The product of its digits is 21504, while the sum is 33.

The square root of 741644421 is about 27233.1493037438. The cubic root of 741644421 is about 905.1736675149.

The spelling of 741644421 in words is "seven hundred forty-one million, six hundred forty-four thousand, four hundred twenty-one".