3740420 has 24 divisors (see below), whose sum is σ = 8127000. Its totient is φ = 1444352.

The previous prime is 3740419. The next prime is 3740437. The reversal of 3740420 is 240473.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1331716 + 2408704 = 1154^2 + 1552^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3740392 and 3740401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2645 + ... + 3804.

It is an arithmetic number, because the mean of its divisors is an integer number (338625).

Almost surely, 2^3740420 is an apocalyptic number.

It is an amenable number.

3740420 is an abundant number, since it is smaller than the sum of its proper divisors (4386580).

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

3740420 is a wasteful number, since it uses less digits than its factorization.

3740420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6487 (or 6485 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 3740420 is about 1934.0165459478. The cubic root of 3740420 is about 155.2292134224.

Adding to 3740420 its reverse (240473), we get a palindrome (3980893).

The spelling of 3740420 in words is "three million, seven hundred forty thousand, four hundred twenty".