43957122 has 48 divisors (see below), whose sum is σ = 97445376. Its totient is φ = 13208800.

The previous prime is 43957103. The next prime is 43957141. The reversal of 43957122 is 22175934.

It is an interprime number because it is at equal distance from previous prime (43957103) and next prime (43957141).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 138508 + ... + 138824.

It is an arithmetic number, because the mean of its divisors is an integer number (2030112).

Almost surely, 2^43957122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43957122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48722688).

43957122 is an abundant number, since it is smaller than the sum of its proper divisors (53488254).

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

43957122 is a wasteful number, since it uses less digits than its factorization.

43957122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 524 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 43957122 is about 6630.0167420603. The cubic root of 43957122 is about 352.9201187796.

The spelling of 43957122 in words is "forty-three million, nine hundred fifty-seven thousand, one hundred twenty-two".