741638 has 8 divisors (see below), whose sum is σ = 1130880. Its totient is φ = 364680.

The previous prime is 741599. The next prime is 741641. The reversal of 741638 is 836147.

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

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 741638.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 741638.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2918 + ... + 3161.

It is an arithmetic number, because the mean of its divisors is an integer number (141360).

2⁷⁴¹⁶³⁸ is an apocalyptic number.

741638 is a deficient number, since it is larger than the sum of its proper divisors (389242).

741638 is a wasteful number, since it uses less digits than its factorization.

741638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6142.

The product of its digits is 4032, while the sum is 29.

The square root of 741638 is about 861.1840685939. The cubic root of 741638 is about 90.5171055240.

It can be divided in two parts, 7 and 41638, that multiplied together give a triangular number (291466 = T₇₆₃).

The spelling of 741638 in words is "seven hundred forty-one thousand, six hundred thirty-eight".