1651936 has 72 divisors (see below), whose sum is σ = 4032504. Its totient is φ = 656640.

The previous prime is 1651921. The next prime is 1651943. The reversal of 1651936 is 6391561.

Its product of digits (4860) is a multiple of the sum of its prime divisors (45).

It is a junction number, because it is equal to n+sod(n) for n = 1651898 and 1651907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86935 + ... + 86953.

It is an arithmetic number, because the mean of its divisors is an integer number (56007).

2^1651936 is an apocalyptic number.

1651936 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 1651936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2016252).

1651936 is an abundant number, since it is smaller than the sum of its proper divisors (2380568).

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

1651936 is a wasteful number, since it uses less digits than its factorization.

1651936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 45 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 1651936 is about 1285.2766239219. The cubic root of 1651936 is about 118.2127732433.

The spelling of 1651936 in words is "one million, six hundred fifty-one thousand, nine hundred thirty-six".