3722478 has 8 divisors (see below), whose sum is σ = 7444968. Its totient is φ = 1240824.

The previous prime is 3722443. The next prime is 3722479. The reversal of 3722478 is 8742273.

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

3722478 is an admirable number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722479) 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, 310201 + ... + 310212.

It is an arithmetic number, because the mean of its divisors is an integer number (930621).

Almost surely, 2^3722478 is an apocalyptic number.

3722478 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.

3722478 is a wasteful number, since it uses less digits than its factorization.

3722478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620418.

The product of its digits is 18816, while the sum is 33.

The square root of 3722478 is about 1929.3724368302. The cubic root of 3722478 is about 154.9806149881.

It can be divided in two parts, 372 and 2478, that added together give a triangular number (2850 = T₇₅).

The spelling of 3722478 in words is "three million, seven hundred twenty-two thousand, four hundred seventy-eight".