5951640 has 32 divisors (see below), whose sum is σ = 17855280. Its totient is φ = 1587072.

The previous prime is 5951633. The next prime is 5951663. The reversal of 5951640 is 461595.

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 = 5951598 and 5951607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24679 + ... + 24918.

Almost surely, 2^5951640 is an apocalyptic number.

It is an amenable number.

5951640 is an abundant number, since it is smaller than the sum of its proper divisors (11903640).

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

5951640 is a wasteful number, since it uses less digits than its factorization.

5951640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49611 (or 49607 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 5951640 is about 2439.5983275941. The cubic root of 5951640 is about 181.2225420157. Note that the first 3 decimals are identical.

The spelling of 5951640 in words is "five million, nine hundred fifty-one thousand, six hundred forty".