40025934 has 128 divisors (see below), whose sum is σ = 104186880. Its totient is φ = 11290752.

The previous prime is 40025933. The next prime is 40025941. The reversal of 40025934 is 43952004.

40025934 is a `hidden beast` number, since 400 + 259 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40025898 and 40025907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40025933) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 597369 + ... + 597435.

It is an arithmetic number, because the mean of its divisors is an integer number (813960).

Almost surely, 2^40025934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40025934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52093440).

40025934 is an abundant number, since it is smaller than the sum of its proper divisors (64160946).

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

40025934 is a wasteful number, since it uses less digits than its factorization.

40025934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 40025934 is about 6326.6052508435. The cubic root of 40025934 is about 342.0690842281.

Adding to 40025934 its reverse (43952004), we get a palindrome (83977938).

The spelling of 40025934 in words is "forty million, twenty-five thousand, nine hundred thirty-four".