5342640 has 80 divisors (see below), whose sum is σ = 16793568. Its totient is φ = 1404928.

The previous prime is 5342639. The next prime is 5342657. The reversal of 5342640 is 462435.

5342640 = 393² + 394² + ... + 424².

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 5342640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27022 + ... + 27218.

Almost surely, 2^5342640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5342640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8396784).

5342640 is an abundant number, since it is smaller than the sum of its proper divisors (11450928).

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

5342640 is a wasteful number, since it uses less digits than its factorization.

5342640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 5342640 is about 2311.4151509411. The cubic root of 5342640 is about 174.8176604191.

The spelling of 5342640 in words is "five million, three hundred forty-two thousand, six hundred forty".