1440462421 has 8 divisors (see below), whose sum is σ = 1452447360. Its totient is φ = 1428500928.

The previous prime is 1440462407. The next prime is 1440462431. The reversal of 1440462421 is 1242640441.

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 1440462421 - 2⁷ = 1440462293 is a prime.

It is a super-3 number, since 3×1440462421³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440462421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440462431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130500 + ... + 141106.

It is an arithmetic number, because the mean of its divisors is an integer number (181555920).

Almost surely, 2^1440462421 is an apocalyptic number.

It is an amenable number.

1440462421 is a deficient number, since it is larger than the sum of its proper divisors (11984939).

1440462421 is a wasteful number, since it uses less digits than its factorization.

1440462421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11723.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 1440462421 is about 37953.4243646077. The cubic root of 1440462421 is about 1129.3640980600.

The spelling of 1440462421 in words is "one billion, four hundred forty million, four hundred sixty-two thousand, four hundred twenty-one".