2051742 has 32 divisors (see below), whose sum is σ = 5117184. Its totient is φ = 532800.

The previous prime is 2051719. The next prime is 2051743. The reversal of 2051742 is 2471502.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051743) 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, 1759 + ... + 2682.

It is an arithmetic number, because the mean of its divisors is an integer number (159912).

2^2051742 is an apocalyptic number.

2051742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2051742 is an abundant number, since it is smaller than the sum of its proper divisors (3065442).

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

2051742 is a wasteful number, since it uses less digits than its factorization.

2051742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4464.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2051742 is about 1432.3903099365. The cubic root of 2051742 is about 127.0693815613.

The spelling of 2051742 in words is "two million, fifty-one thousand, seven hundred forty-two".