3724638 has 8 divisors (see below), whose sum is σ = 7449288. Its totient is φ = 1241544.

The previous prime is 3724631. The next prime is 3724657. The reversal of 3724638 is 8364273.

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

3724638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 3724599 and 3724608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3724631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310381 + ... + 310392.

It is an arithmetic number, because the mean of its divisors is an integer number (931161).

Almost surely, 2^3724638 is an apocalyptic number.

3724638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3724638 is a wasteful number, since it uses less digits than its factorization.

3724638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620778.

The product of its digits is 24192, while the sum is 33.

The square root of 3724638 is about 1929.9321231587. The cubic root of 3724638 is about 155.0105854720.

The spelling of 3724638 in words is "three million, seven hundred twenty-four thousand, six hundred thirty-eight".