1214388 has 72 divisors (see below), whose sum is σ = 3610880. Its totient is φ = 336960.

The previous prime is 1214371. The next prime is 1214393. The reversal of 1214388 is 8834121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15333 + ... + 15411.

2^1214388 is an apocalyptic number.

1214388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805440).

1214388 is an abundant number, since it is smaller than the sum of its proper divisors (2396492).

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

1214388 is a wasteful number, since it uses less digits than its factorization.

1214388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 152 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1214388 is about 1101.9927404480. The cubic root of 1214388 is about 106.6888799224.

It can be divided in two parts, 12 and 14388, that added together give a square (14400 = 120²).

The spelling of 1214388 in words is "one million, two hundred fourteen thousand, three hundred eighty-eight".