1440420614 has 4 divisors (see below), whose sum is σ = 2160630924. Its totient is φ = 720210306.

The previous prime is 1440420613. The next prime is 1440420617. The reversal of 1440420614 is 4160240441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4160240441 = 7 ⋅594320063.

It is a super-2 number, since 2×1440420614² = 4149623090472273992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440420613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360105152 + ... + 360105155.

It is an arithmetic number, because the mean of its divisors is an integer number (540157731).

Almost surely, 2^1440420614 is an apocalyptic number.

1440420614 is a deficient number, since it is larger than the sum of its proper divisors (720210310).

1440420614 is an equidigital number, since it uses as much as digits as its factorization.

1440420614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720210309.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1440420614 is about 37952.8735934448. The cubic root of 1440420614 is about 1129.3531719896.

The spelling of 1440420614 in words is "one billion, four hundred forty million, four hundred twenty thousand, six hundred fourteen".