3251040 has 96 divisors (see below), whose sum is σ = 11049696. Its totient is φ = 798720.

The previous prime is 3251023. The next prime is 3251047. The reversal of 3251040 is 401523.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×3251040² = 21138522163200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3251047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5980 + ... + 6500.

It is an arithmetic number, because the mean of its divisors is an integer number (115101).

Almost surely, 2^3251040 is an apocalyptic number.

3251040 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 3251040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5524848).

3251040 is an abundant number, since it is smaller than the sum of its proper divisors (7798656).

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

3251040 is a wasteful number, since it uses less digits than its factorization.

3251040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 3251040 is about 1803.0640587622. The cubic root of 3251040 is about 148.1406017144.

Adding to 3251040 its reverse (401523), we get a palindrome (3652563).

The spelling of 3251040 in words is "three million, two hundred fifty-one thousand, forty".