3742856 has 64 divisors (see below), whose sum is σ = 8391600. Its totient is φ = 1548288.

The previous prime is 3742841. The next prime is 3742861. The reversal of 3742856 is 6582473.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1865956 + 1876900 = 1366^2 + 1370^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51236 + ... + 51308.

Almost surely, 2^3742856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3742856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4195800).

3742856 is an abundant number, since it is smaller than the sum of its proper divisors (4648744).

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

3742856 is a wasteful number, since it uses less digits than its factorization.

3742856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 134 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 3742856 is about 1934.6462208890. The cubic root of 3742856 is about 155.2629044967.

The spelling of 3742856 in words is "three million, seven hundred forty-two thousand, eight hundred fifty-six".