1444350894 has 32 divisors (see below), whose sum is σ = 3341157120. Its totient is φ = 407698752.

The previous prime is 1444350823. The next prime is 1444350953. The reversal of 1444350894 is 4980534441.

It is a super-2 number, since 2×1444350894² = 4172299009997198472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203679 + ... + 210650.

It is an arithmetic number, because the mean of its divisors is an integer number (104411160).

Almost surely, 2^1444350894 is an apocalyptic number.

1444350894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1444350894 is an abundant number, since it is smaller than the sum of its proper divisors (1896806226).

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

1444350894 is a wasteful number, since it uses less digits than its factorization.

1444350894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414424.

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 1444350894 is about 38004.6167458639. The cubic root of 1444350894 is about 1130.3794100160.

The spelling of 1444350894 in words is "one billion, four hundred forty-four million, three hundred fifty thousand, eight hundred ninety-four".