3458720 has 24 divisors (see below), whose sum is σ = 8171604. Its totient is φ = 1383424.

The previous prime is 3458687. The next prime is 3458731. The reversal of 3458720 is 278543.

3458720 = T₂₁₉ + T₂₂₀ + ... + T₃₁₄.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3254416 + 204304 = 1804^2 + 452^2 .

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, 10649 + ... + 10968.

Almost surely, 2^3458720 is an apocalyptic number.

It is an amenable number.

3458720 is an abundant number, since it is smaller than the sum of its proper divisors (4712884).

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

3458720 is a wasteful number, since it uses less digits than its factorization.

3458720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21632 (or 21624 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 3458720 is about 1859.7634258152. The cubic root of 3458720 is about 151.2301797674.

The spelling of 3458720 in words is "three million, four hundred fifty-eight thousand, seven hundred twenty".