1444520770 has 128 divisors (see below), whose sum is σ = 3455281152. Its totient is φ = 420940800.

The previous prime is 1444520761. The next prime is 1444520807. The reversal of 1444520770 is 770254441.

It is a happy number.

It is a super-2 number, since 2×1444520770² = 4173280509922785800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2761729 + ... + 2762251.

It is an arithmetic number, because the mean of its divisors is an integer number (26994384).

Almost surely, 2^1444520770 is an apocalyptic number.

1444520770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1444520770 is an abundant number, since it is smaller than the sum of its proper divisors (2010760382).

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

1444520770 is a wasteful number, since it uses less digits than its factorization.

1444520770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776.

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 1444520770 is about 38006.8516191489. The cubic root of 1444520770 is about 1130.4237244564.

The spelling of 1444520770 in words is "one billion, four hundred forty-four million, five hundred twenty thousand, seven hundred seventy".