3720408 has 16 divisors (see below), whose sum is σ = 9301080. Its totient is φ = 1240128.

The previous prime is 3720407. The next prime is 3720413. The reversal of 3720408 is 8040273.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 155017 = 3720408 / (3 + 7 + 2 + 0 + 4 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77485 + ... + 77532.

Almost surely, 2^3720408 is an apocalyptic number.

It is an amenable number.

3720408 is an abundant number, since it is smaller than the sum of its proper divisors (5580672).

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

3720408 is a wasteful number, since it uses less digits than its factorization.

3720408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155026 (or 155022 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 3720408 is about 1928.8359183715. The cubic root of 3720408 is about 154.9518823933.

The spelling of 3720408 in words is "three million, seven hundred twenty thousand, four hundred eight".