40125432 has 64 divisors (see below), whose sum is σ = 105569280. Its totient is φ = 12684672.

The previous prime is 40125419. The next prime is 40125469. The reversal of 40125432 is 23452104.

It is a super-2 number, since 2×40125432² = 3220100586373248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40125399 and 40125408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86433 + ... + 86895.

It is an arithmetic number, because the mean of its divisors is an integer number (1649520).

Almost surely, 2^40125432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40125432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52784640).

40125432 is an abundant number, since it is smaller than the sum of its proper divisors (65443848).

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

40125432 is a wasteful number, since it uses less digits than its factorization.

40125432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40125432 is about 6334.4638289282. The cubic root of 40125432 is about 342.3522924986.

Adding to 40125432 its reverse (23452104), we get a palindrome (63577536).

The spelling of 40125432 in words is "forty million, one hundred twenty-five thousand, four hundred thirty-two".