2574978 has 32 divisors (see below), whose sum is σ = 6048384. Its totient is φ = 715392.

The previous prime is 2574977. The next prime is 2574983. The reversal of 2574978 is 8794752.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (2574977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726 + ... + 2382.

It is an arithmetic number, because the mean of its divisors is an integer number (189012).

2^2574978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2574978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3024192).

2574978 is an abundant number, since it is smaller than the sum of its proper divisors (3473406).

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

2574978 is a wasteful number, since it uses less digits than its factorization.

2574978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706.

The product of its digits is 141120, while the sum is 42.

The square root of 2574978 is about 1604.6737986270. The cubic root of 2574978 is about 137.0643489774.

The spelling of 2574978 in words is "two million, five hundred seventy-four thousand, nine hundred seventy-eight".