1902656 has 56 divisors (see below), whose sum is σ = 4486656. Its totient is φ = 783360.

The previous prime is 1902653. The next prime is 1902671. The reversal of 1902656 is 6562091.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (1902653) 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, 13820 + ... + 13956.

2^1902656 is an apocalyptic number.

1902656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1902656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2243328).

1902656 is an abundant number, since it is smaller than the sum of its proper divisors (2584000).

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

1902656 is a wasteful number, since it uses less digits than its factorization.

1902656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1902656 is about 1379.3679712100. The cubic root of 1902656 is about 123.9139187505.

The spelling of 1902656 in words is "one million, nine hundred two thousand, six hundred fifty-six".