1949421 has 8 divisors (see below), whose sum is σ = 2630880. Its totient is φ = 1283792.

The previous prime is 1949417. The next prime is 1949459. The reversal of 1949421 is 1249491.

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

It is a cyclic number.

It is not a de Polignac number, because 1949421 - 2² = 1949417 is a prime.

1949421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949471) 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, 3666 + ... + 4163.

It is an arithmetic number, because the mean of its divisors is an integer number (328860).

2^1949421 is an apocalyptic number.

It is an amenable number.

1949421 is a deficient number, since it is larger than the sum of its proper divisors (681459).

1949421 is an equidigital number, since it uses as much as digits as its factorization.

1949421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915.

The product of its digits is 2592, while the sum is 30.

The square root of 1949421 is about 1396.2166737294. The cubic root of 1949421 is about 124.9209313290.

The spelling of 1949421 in words is "one million, nine hundred forty-nine thousand, four hundred twenty-one".