43949052 has 144 divisors (see below), whose sum is σ = 136631040. Its totient is φ = 11632896.

The previous prime is 43949047. The next prime is 43949057. The reversal of 43949052 is 25094934.

It is an interprime number because it is at equal distance from previous prime (43949047) and next prime (43949057).

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

It is a junction number, because it is equal to n+sod(n) for n = 43948998 and 43949016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43949057) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 320728 + ... + 320864.

Almost surely, 2^43949052 is an apocalyptic number.

43949052 is a gapful number since it is divisible by the number (42) 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 43949052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68315520).

43949052 is an abundant number, since it is smaller than the sum of its proper divisors (92681988).

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

43949052 is a wasteful number, since it uses less digits than its factorization.

43949052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 43949052 is about 6629.4081183768. The cubic root of 43949052 is about 352.8985201585.

The spelling of 43949052 in words is "forty-three million, nine hundred forty-nine thousand, fifty-two".