1642960 has 40 divisors (see below), whose sum is σ = 4169376. Its totient is φ = 597120.

The previous prime is 1642951. The next prime is 1642997. The reversal of 1642960 is 692461.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54 + ... + 1813.

2^1642960 is an apocalyptic number.

1642960 is a gapful number since it is divisible by the number (10) 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 1642960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2084688).

1642960 is an abundant number, since it is smaller than the sum of its proper divisors (2526416).

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

1642960 is a wasteful number, since it uses less digits than its factorization.

1642960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1642960 is about 1281.7800123266. The cubic root of 1642960 is about 117.9982763322.

The spelling of 1642960 in words is "one million, six hundred forty-two thousand, nine hundred sixty".