2154942 has 24 divisors (see below), whose sum is σ = 4915560. Its totient is φ = 680400.

The previous prime is 2154941. The next prime is 2154949. The reversal of 2154942 is 2494512.

2154942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2809 + ... + 3492.

It is an arithmetic number, because the mean of its divisors is an integer number (204815).

2^2154942 is an apocalyptic number.

2154942 is an abundant number, since it is smaller than the sum of its proper divisors (2760618).

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

2154942 is a wasteful number, since it uses less digits than its factorization.

2154942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328 (or 6325 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2154942 is about 1467.9720705790. The cubic root of 2154942 is about 129.1651031838.

It can be divided in two parts, 215494 and 2, that added together give a triangular number (215496 = T₆₅₆).

The spelling of 2154942 in words is "two million, one hundred fifty-four thousand, nine hundred forty-two".