1180421 has 8 divisors (see below), whose sum is σ = 1296000. Its totient is φ = 1066240.

The previous prime is 1180409. The next prime is 1180423. The reversal of 1180421 is 1240811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1180421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1180421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180423) 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, 2405 + ... + 2853.

It is an arithmetic number, because the mean of its divisors is an integer number (162000).

2^1180421 is an apocalyptic number.

1180421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1180421 is a deficient number, since it is larger than the sum of its proper divisors (115579).

1180421 is a wasteful number, since it uses less digits than its factorization.

1180421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1180421 is about 1086.4718127959. The cubic root of 1180421 is about 105.6847462598.

The spelling of 1180421 in words is "one million, one hundred eighty thousand, four hundred twenty-one".