3740520 has 128 divisors (see below), whose sum is σ = 13213440. Its totient is φ = 829440.

The previous prime is 3740519. The next prime is 3740537. The reversal of 3740520 is 250473.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51204 + ... + 51276.

It is an arithmetic number, because the mean of its divisors is an integer number (103230).

Almost surely, 2^3740520 is an apocalyptic number.

3740520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3740520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6606720).

3740520 is an abundant number, since it is smaller than the sum of its proper divisors (9472920).

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

3740520 is a wasteful number, since it uses less digits than its factorization.

3740520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 3740520 is about 1934.0423987079. The cubic root of 3740520 is about 155.2305967593.

Adding to 3740520 its reverse (250473), we get a palindrome (3990993).

The spelling of 3740520 in words is "three million, seven hundred forty thousand, five hundred twenty".