2011942 has 4 divisors (see below), whose sum is σ = 3017916. Its totient is φ = 1005970.

The previous prime is 2011939. The next prime is 2011951. The reversal of 2011942 is 2491102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2491102 = 2 ⋅1245551.

It is a super-2 number, since 2×2011942² = 8095821222728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502984 + ... + 502987.

It is an arithmetic number, because the mean of its divisors is an integer number (754479).

2^2011942 is an apocalyptic number.

2011942 is a deficient number, since it is larger than the sum of its proper divisors (1005974).

2011942 is a wasteful number, since it uses less digits than its factorization.

2011942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005973.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2011942 is about 1418.4294131186. The cubic root of 2011942 is about 126.2423738164.

The spelling of 2011942 in words is "two million, eleven thousand, nine hundred forty-two".