3124940 has 96 divisors (see below), whose sum is σ = 8636544. Its totient is φ = 921600.

The previous prime is 3124903. The next prime is 3124943. The reversal of 3124940 is 494213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3124943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30890 + ... + 30990.

It is an arithmetic number, because the mean of its divisors is an integer number (89964).

Almost surely, 2^3124940 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 3124940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4318272).

3124940 is an abundant number, since it is smaller than the sum of its proper divisors (5511604).

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

3124940 is a wasteful number, since it uses less digits than its factorization.

3124940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3124940 is about 1767.7499823222. The cubic root of 3124940 is about 146.1999512190.

The spelling of 3124940 in words is "three million, one hundred twenty-four thousand, nine hundred forty".