40124928 has 80 divisors (see below), whose sum is σ = 108225216. Its totient is φ = 13209600.

The previous prime is 40124921. The next prime is 40124957. The reversal of 40124928 is 82942104.

It is a super-2 number, since 2×40124928² = 3220019694010368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40124895 and 40124904.

It is not an unprimeable number, because it can be changed into a prime (40124921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231850 + ... + 232022.

Almost surely, 2^40124928 is an apocalyptic number.

40124928 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 40124928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54112608).

40124928 is an abundant number, since it is smaller than the sum of its proper divisors (68100288).

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

40124928 is a wasteful number, since it uses less digits than its factorization.

40124928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40124928 is about 6334.4240464307. The cubic root of 40124928 is about 342.3508591078.

The spelling of 40124928 in words is "forty million, one hundred twenty-four thousand, nine hundred twenty-eight".