40705248 has 48 divisors (see below), whose sum is σ = 107533440. Its totient is φ = 13481856.

The previous prime is 40705229. The next prime is 40705283. The reversal of 40705248 is 84250704.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14763 + ... + 17301.

It is an arithmetic number, because the mean of its divisors is an integer number (2240280).

Almost surely, 2^40705248 is an apocalyptic number.

40705248 is a gapful number since it is divisible by the number (48) 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 40705248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53766720).

40705248 is an abundant number, since it is smaller than the sum of its proper divisors (66828192).

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

40705248 is a wasteful number, since it uses less digits than its factorization.

40705248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40705248 is about 6380.0664573341. The cubic root of 40705248 is about 343.9934197407.

The spelling of 40705248 in words is "forty million, seven hundred five thousand, two hundred forty-eight".