5642478 has 12 divisors (see below), whose sum is σ = 12225408. Its totient is φ = 1880820.

The previous prime is 5642477. The next prime is 5642479. The reversal of 5642478 is 8742465.

5642478 is a `hidden beast` number, since 5 + 642 + 4 + 7 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (5642477) and next prime (5642479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156718 + ... + 156753.

It is an arithmetic number, because the mean of its divisors is an integer number (1018784).

Almost surely, 2^5642478 is an apocalyptic number.

5642478 is an abundant number, since it is smaller than the sum of its proper divisors (6582930).

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

5642478 is a wasteful number, since it uses less digits than its factorization.

5642478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313479 (or 313476 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 5642478 is about 2375.3900732301. The cubic root of 5642478 is about 178.0286744194.

The spelling of 5642478 in words is "five million, six hundred forty-two thousand, four hundred seventy-eight".