1440452970 has 336 divisors, whose sum is σ = 4521557376. Its totient is φ = 329313600.

The previous prime is 1440452941. The next prime is 1440452987. The reversal of 1440452970 is 792540441.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 20288035 + ... + 20288105.

It is an arithmetic number, because the mean of its divisors is an integer number (13457016).

Almost surely, 2^1440452970 is an apocalyptic number.

1440452970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1440452970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2260778688).

1440452970 is an abundant number, since it is smaller than the sum of its proper divisors (3081104406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1440452970 is a wasteful number, since it uses less digits than its factorization.

1440452970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1440452970 is about 37953.2998565342. The cubic root of 1440452970 is about 1129.3616281024.

The spelling of 1440452970 in words is "one billion, four hundred forty million, four hundred fifty-two thousand, nine hundred seventy".