3257940 has 48 divisors (see below), whose sum is σ = 10426752. Its totient is φ = 744576.

The previous prime is 3257923. The next prime is 3257941. The reversal of 3257940 is 497523.

3257940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3257940² = 21228346087200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3257898 and 3257907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3257941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3459 + ... + 4298.

It is an arithmetic number, because the mean of its divisors is an integer number (217224).

Almost surely, 2^3257940 is an apocalyptic number.

3257940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3257940 is an abundant number, since it is smaller than the sum of its proper divisors (7168812).

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

3257940 is a wasteful number, since it uses less digits than its factorization.

3257940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776 (or 7774 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 3257940 is about 1804.9764541401. The cubic root of 3257940 is about 148.2453320830.

The spelling of 3257940 in words is "three million, two hundred fifty-seven thousand, nine hundred forty".