44143778 has 32 divisors (see below), whose sum is σ = 77414400. Its totient is φ = 18489744.

The previous prime is 44143777. The next prime is 44143787. The reversal of 44143778 is 87734144.

It is a super-2 number, since 2×44143778² = 3897346272226568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44143777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184583 + ... + 184821.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^44143778 is an apocalyptic number.

44143778 is a deficient number, since it is larger than the sum of its proper divisors (33270622).

44143778 is a wasteful number, since it uses less digits than its factorization.

44143778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494.

The product of its digits is 75264, while the sum is 38.

The square root of 44143778 is about 6644.0784161537. The cubic root of 44143778 is about 353.4189506140.

It can be divided in two parts, 4414 and 3778, that added together give a 13-th power (8192 = 2¹³).

The spelling of 44143778 in words is "forty-four million, one hundred forty-three thousand, seven hundred seventy-eight".