5156440 has 32 divisors (see below), whose sum is σ = 12286080. Its totient is φ = 1940992.

The previous prime is 5156419. The next prime is 5156441. The reversal of 5156440 is 446515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3112 + ... + 4471.

It is an arithmetic number, because the mean of its divisors is an integer number (383940).

Almost surely, 2^5156440 is an apocalyptic number.

It is an amenable number.

5156440 is an abundant number, since it is smaller than the sum of its proper divisors (7129640).

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

5156440 is a wasteful number, since it uses less digits than its factorization.

5156440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7611 (or 7607 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 5156440 is about 2270.7796018108. The cubic root of 5156440 is about 172.7627027128.

It can be divided in two parts, 515 and 6440, that multiplied together give a triangular number (3316600 = T₂₅₇₅).

The spelling of 5156440 in words is "five million, one hundred fifty-six thousand, four hundred forty".