40125648 has 20 divisors (see below), whose sum is σ = 103658048. Its totient is φ = 13375200.

The previous prime is 40125643. The next prime is 40125653. The reversal of 40125648 is 84652104.

It is an interprime number because it is at equal distance from previous prime (40125643) and next prime (40125653).

It is a super-2 number, since 2×40125648² = 3220135254839808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40125643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417928 + ... + 418023.

Almost surely, 2^40125648 is an apocalyptic number.

40125648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40125648 is an abundant number, since it is smaller than the sum of its proper divisors (63532400).

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

40125648 is a wasteful number, since it uses less digits than its factorization.

40125648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835962 (or 835956 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 40125648 is about 6334.4808784935. The cubic root of 40125648 is about 342.3529068053.

The spelling of 40125648 in words is "forty million, one hundred twenty-five thousand, six hundred forty-eight".