3742820 has 12 divisors (see below), whose sum is σ = 7859964. Its totient is φ = 1497120.

The previous prime is 3742793. The next prime is 3742841. The reversal of 3742820 is 282473.

It can be written as a sum of positive squares in 2 ways, for example, as 495616 + 3247204 = 704^2 + 1802^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3742820.

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, 93551 + ... + 93590.

It is an arithmetic number, because the mean of its divisors is an integer number (654997).

Almost surely, 2^3742820 is an apocalyptic number.

It is an amenable number.

3742820 is an abundant number, since it is smaller than the sum of its proper divisors (4117144).

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

3742820 is a wasteful number, since it uses less digits than its factorization.

3742820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187150 (or 187148 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 3742820 is about 1934.6369168400. The cubic root of 3742820 is about 155.2624067055.

The spelling of 3742820 in words is "three million, seven hundred forty-two thousand, eight hundred twenty".