1902642 has 32 divisors (see below), whose sum is σ = 4406400. Its totient is φ = 536448.

The previous prime is 1902619. The next prime is 1902643. The reversal of 1902642 is 2462091.

It is not an unprimeable number, because it can be changed into a prime (1902643) 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, 3484 + ... + 3992.

It is an arithmetic number, because the mean of its divisors is an integer number (137700).

2^1902642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1902642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2203200).

1902642 is an abundant number, since it is smaller than the sum of its proper divisors (2503758).

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

1902642 is a wasteful number, since it uses less digits than its factorization.

1902642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1902642 is about 1379.3628964127. The cubic root of 1902642 is about 123.9136148247.

The spelling of 1902642 in words is "one million, nine hundred two thousand, six hundred forty-two".