5642390 has 16 divisors (see below), whose sum is σ = 10937808. Its totient is φ = 2083296.

The previous prime is 5642387. The next prime is 5642401. The reversal of 5642390 is 932465.

It is a Curzon number.

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, 21572 + ... + 21831.

It is an arithmetic number, because the mean of its divisors is an integer number (683613).

Almost surely, 2^5642390 is an apocalyptic number.

5642390 is a deficient number, since it is larger than the sum of its proper divisors (5295418).

5642390 is a wasteful number, since it uses less digits than its factorization.

5642390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43423.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 5642390 is about 2375.3715498844. The cubic root of 5642390 is about 178.0277489037.

The spelling of 5642390 in words is "five million, six hundred forty-two thousand, three hundred ninety".