5147940 has 144 divisors (see below), whose sum is σ = 17926272. Its totient is φ = 1096704.

The previous prime is 5147939. The next prime is 5147951. The reversal of 5147940 is 497415.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5147898 and 5147907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49929 + ... + 50031.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

Almost surely, 2^5147940 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 5147940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8963136).

5147940 is an abundant number, since it is smaller than the sum of its proper divisors (12778332).

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

5147940 is a wasteful number, since it uses less digits than its factorization.

5147940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 5147940 is about 2268.9072259570. The cubic root of 5147940 is about 172.6677217694.

The spelling of 5147940 in words is "five million, one hundred forty-seven thousand, nine hundred forty".