3428425 has 48 divisors (see below), whose sum is σ = 5749632. Its totient is φ = 1958400.

The previous prime is 3428423. The next prime is 3428437. The reversal of 3428425 is 5248243.

3428425 = T₁ + T₂ + ... + T₂₇₃.

3428425 is a nontrivial binomial coefficient, being equal to C(275, 3).

It is not a de Polignac number, because 3428425 - 2¹ = 3428423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3428393 and 3428402.

It is not an unprimeable number, because it can be changed into a prime (3428423) by changing a digit.

It is the 273-rd tetrahedral number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24957 + ... + 25093.

It is an arithmetic number, because the mean of its divisors is an integer number (119784).

Almost surely, 2^3428425 is an apocalyptic number.

3428425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3428425 is a deficient number, since it is larger than the sum of its proper divisors (2321207).

3428425 is a wasteful number, since it uses less digits than its factorization.

3428425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 173 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 3428425 is about 1851.6006588895. The cubic root of 3428425 is about 150.7873415394.

The spelling of 3428425 in words is "three million, four hundred twenty-eight thousand, four hundred twenty-five".