44149680 has 120 divisors (see below), whose sum is σ = 157034592. Its totient is φ = 11077632.

The previous prime is 44149669. The next prime is 44149709. The reversal of 44149680 is 8694144.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10437 + ... + 14043.

Almost surely, 2^44149680 is an apocalyptic number.

44149680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44149680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78517296).

44149680 is an abundant number, since it is smaller than the sum of its proper divisors (112884912).

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

44149680 is a wasteful number, since it uses less digits than its factorization.

44149680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643 (or 3634 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 44149680 is about 6644.5225562112. The cubic root of 44149680 is about 353.4347005550.

The spelling of 44149680 in words is "forty-four million, one hundred forty-nine thousand, six hundred eighty".