2149642 has 8 divisors (see below), whose sum is σ = 3517632. Its totient is φ = 977100.

The previous prime is 2149621. The next prime is 2149661. The reversal of 2149642 is 2469412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2149642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48834 + ... + 48877.

It is an arithmetic number, because the mean of its divisors is an integer number (439704).

2^2149642 is an apocalyptic number.

2149642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2149642 is a deficient number, since it is larger than the sum of its proper divisors (1367990).

2149642 is a wasteful number, since it uses less digits than its factorization.

2149642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97724.

The product of its digits is 3456, while the sum is 28.

The square root of 2149642 is about 1466.1657477925. The cubic root of 2149642 is about 129.0591239905.

The spelling of 2149642 in words is "two million, one hundred forty-nine thousand, six hundred forty-two".