40057950 has 96 divisors (see below), whose sum is σ = 109921536. Its totient is φ = 9602560.

The previous prime is 40057937. The next prime is 40057957. The reversal of 40057950 is 5975004.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40057957) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58309 + ... + 58991.

It is an arithmetic number, because the mean of its divisors is an integer number (1145016).

Almost surely, 2^40057950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40057950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54960768).

40057950 is an abundant number, since it is smaller than the sum of its proper divisors (69863586).

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

40057950 is a wasteful number, since it uses less digits than its factorization.

40057950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 40057950 is about 6329.1350119902. The cubic root of 40057950 is about 342.1602648201.

The spelling of 40057950 in words is "forty million, fifty-seven thousand, nine hundred fifty".