1233940 has 24 divisors (see below), whose sum is σ = 2620800. Its totient is φ = 487968.

The previous prime is 1233929. The next prime is 1233949. The reversal of 1233940 is 493321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1761 + ... + 2359.

It is an arithmetic number, because the mean of its divisors is an integer number (109200).

2^1233940 is an apocalyptic number.

1233940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233940 is an abundant number, since it is smaller than the sum of its proper divisors (1386860).

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

1233940 is a wasteful number, since it uses less digits than its factorization.

1233940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1233940 is about 1110.8285196195. The cubic root of 1233940 is about 107.2584082461.

It can be divided in two parts, 123 and 3940, that multiplied together give a triangular number (484620 = T₉₈₄).

The spelling of 1233940 in words is "one million, two hundred thirty-three thousand, nine hundred forty".