2563974 has 120 divisors (see below), whose sum is σ = 7448760. Its totient is φ = 653184.

The previous prime is 2563969. The next prime is 2563997. The reversal of 2563974 is 4793652.

2563974 is a `hidden beast` number, since 2 + 563 + 97 + 4 = 666.

It is a d-powerful number, because it can be written as 2³ + 5 + 6⁸ + 3¹⁰ + 9³ + 7⁷ + 4⁵ .

Its product of digits (45360) is a multiple of the sum of its prime divisors (48).

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 59 ways as a sum of consecutive naturals, for example, 134937 + ... + 134955.

It is an arithmetic number, because the mean of its divisors is an integer number (62073).

2^2563974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2563974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3724380).

2563974 is an abundant number, since it is smaller than the sum of its proper divisors (4884786).

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

2563974 is a wasteful number, since it uses less digits than its factorization.

2563974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 48 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 2563974 is about 1601.2413934195. The cubic root of 2563974 is about 136.8688250170.

The spelling of 2563974 in words is "two million, five hundred sixty-three thousand, nine hundred seventy-four".