3702420 has 72 divisors (see below), whose sum is σ = 11435424. Its totient is φ = 969408.

The previous prime is 3702409. The next prime is 3702443. The reversal of 3702420 is 242073.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3702393 and 3702402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11907 + ... + 12213.

Almost surely, 2^3702420 is an apocalyptic number.

3702420 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 3702420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5717712).

3702420 is an abundant number, since it is smaller than the sum of its proper divisors (7733004).

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

3702420 is a wasteful number, since it uses less digits than its factorization.

3702420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 3702420 is about 1924.1673523891. The cubic root of 3702420 is about 154.7017504472.

Adding to 3702420 its reverse (242073), we get a palindrome (3944493).

The spelling of 3702420 in words is "three million, seven hundred two thousand, four hundred twenty".