5451240 has 32 divisors (see below), whose sum is σ = 16354080. Its totient is φ = 1453632.

The previous prime is 5451151. The next prime is 5451241. The reversal of 5451240 is 421545.

5451240 = T₂₀₀ + T₂₀₁ + ... + T₃₄₃.

5451240 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (5451241) 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, 22594 + ... + 22833.

It is an arithmetic number, because the mean of its divisors is an integer number (511065).

Almost surely, 2^5451240 is an apocalyptic number.

It is an amenable number.

5451240 is an abundant number, since it is smaller than the sum of its proper divisors (10902840).

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

5451240 is a wasteful number, since it uses less digits than its factorization.

5451240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45441 (or 45437 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 5451240 is about 2334.7890697020. The cubic root of 5451240 is about 175.9942319046.

Adding to 5451240 its reverse (421545), we get a palindrome (5872785).

The spelling of 5451240 in words is "five million, four hundred fifty-one thousand, two hundred forty".