3728742 has 16 divisors (see below), whose sum is σ = 7698432. Its totient is φ = 1202760.

The previous prime is 3728719. The next prime is 3728743. The reversal of 3728742 is 2478273.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728743) 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, 9838 + ... + 10209.

It is an arithmetic number, because the mean of its divisors is an integer number (481152).

Almost surely, 2^3728742 is an apocalyptic number.

3728742 is an abundant number, since it is smaller than the sum of its proper divisors (3969690).

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

3728742 is a wasteful number, since it uses less digits than its factorization.

3728742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20083.

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

The square root of 3728742 is about 1930.9950802630. The cubic root of 3728742 is about 155.0674974845.

The spelling of 3728742 in words is "three million, seven hundred twenty-eight thousand, seven hundred forty-two".