1614040021 has 8 divisors (see below), whose sum is σ = 1761228000. Its totient is φ = 1466928240.

The previous prime is 1614040013. The next prime is 1614040031. The reversal of 1614040021 is 1200404161.

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 1614040021 - 2³ = 1614040013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1614040031) 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, 30970 + ... + 64708.

It is an arithmetic number, because the mean of its divisors is an integer number (220153500).

Almost surely, 2^1614040021 is an apocalyptic number.

1614040021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1614040021 is a deficient number, since it is larger than the sum of its proper divisors (147187979).

1614040021 is a wasteful number, since it uses less digits than its factorization.

1614040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38099.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1614040021 is about 40175.1169382243. The cubic root of 1614040021 is about 1173.0182429057.

Adding to 1614040021 its reverse (1200404161), we get a palindrome (2814444182).

The spelling of 1614040021 in words is "one billion, six hundred fourteen million, forty thousand, twenty-one".