2865402 has 32 divisors (see below), whose sum is σ = 6508800. Its totient is φ = 933984.

The previous prime is 2865397. The next prime is 2865413. The reversal of 2865402 is 2045682.

2865402 is a `hidden beast` number, since 2 + 8 + 654 + 0 + 2 = 666.

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1974 + ... + 3102.

It is an arithmetic number, because the mean of its divisors is an integer number (203400).

2^2865402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2865402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3254400).

2865402 is an abundant number, since it is smaller than the sum of its proper divisors (3643398).

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

2865402 is a wasteful number, since it uses less digits than its factorization.

2865402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2865402 is about 1692.7498338502. The cubic root of 2865402 is about 142.0349381728.

The spelling of 2865402 in words is "two million, eight hundred sixty-five thousand, four hundred two".