1986402 has 16 divisors (see below), whose sum is σ = 4334112. Its totient is φ = 601920.

The previous prime is 1986401. The next prime is 1986421. The reversal of 1986402 is 2046891.

It is a self number, because there is not a number n which added to its sum of digits gives 1986402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1986401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14983 + ... + 15114.

It is an arithmetic number, because the mean of its divisors is an integer number (270882).

2^1986402 is an apocalyptic number.

1986402 is an abundant number, since it is smaller than the sum of its proper divisors (2347710).

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

1986402 is a wasteful number, since it uses less digits than its factorization.

1986402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30113.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1986402 is about 1409.3977437189. The cubic root of 1986402 is about 125.7059152977.

The spelling of 1986402 in words is "one million, nine hundred eighty-six thousand, four hundred two".