2574390 has 128 divisors (see below), whose sum is σ = 8128512. Its totient is φ = 506880.

The previous prime is 2574353. The next prime is 2574391. The reversal of 2574390 is 934752.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2574391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62770 + ... + 62810.

It is an arithmetic number, because the mean of its divisors is an integer number (63504).

2^2574390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2574390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4064256).

2574390 is an abundant number, since it is smaller than the sum of its proper divisors (5554122).

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

2574390 is a wasteful number, since it uses less digits than its factorization.

2574390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2574390 is about 1604.4905733597. The cubic root of 2574390 is about 137.0539152348.

The spelling of 2574390 in words is "two million, five hundred seventy-four thousand, three hundred ninety".