2121350 has 96 divisors (see below), whose sum is σ = 5356800. Its totient is φ = 604800.

The previous prime is 2121341. The next prime is 2121367. The reversal of 2121350 is 531212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73136 + ... + 73164.

It is an arithmetic number, because the mean of its divisors is an integer number (55800).

2^2121350 is an apocalyptic number.

2121350 is an abundant number, since it is smaller than the sum of its proper divisors (3235450).

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

2121350 is a wasteful number, since it uses less digits than its factorization.

2121350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2121350 is about 1456.4854959800. The cubic root of 2121350 is about 128.4904281101.

2121350 divided by its sum of digits (14) gives a triangular number (151525 = T₅₅₀).

Adding to 2121350 its reverse (531212), we get a palindrome (2652562).

The spelling of 2121350 in words is "two million, one hundred twenty-one thousand, three hundred fifty".