2581902 has 32 divisors (see below), whose sum is σ = 5796000. Its totient is φ = 851904.

The previous prime is 2581877. The next prime is 2581907. The reversal of 2581902 is 2091852.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2581907) 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, 7224 + ... + 7572.

It is an arithmetic number, because the mean of its divisors is an integer number (181125).

2^2581902 is an apocalyptic number.

2581902 is an abundant number, since it is smaller than the sum of its proper divisors (3214098).

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

2581902 is a wasteful number, since it uses less digits than its factorization.

2581902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2581902 is about 1606.8297980807. The cubic root of 2581902 is about 137.1870923153.

The spelling of 2581902 in words is "two million, five hundred eighty-one thousand, nine hundred two".