40425530 has 16 divisors (see below), whose sum is σ = 72852480. Its totient is φ = 16150992.

The previous prime is 40425529. The next prime is 40425533. The reversal of 40425530 is 3552404.

It is a junction number, because it is equal to n+sod(n) for n = 40425496 and 40425505.

It is not an unprimeable number, because it can be changed into a prime (40425533) 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, 9011 + ... + 12729.

It is an arithmetic number, because the mean of its divisors is an integer number (4553280).

Almost surely, 2^40425530 is an apocalyptic number.

40425530 is a deficient number, since it is larger than the sum of its proper divisors (32426950).

40425530 is a wasteful number, since it uses less digits than its factorization.

40425530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4813.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 40425530 is about 6358.1074228107. The cubic root of 40425530 is about 343.2036575246.

Adding to 40425530 its reverse (3552404), we get a palindrome (43977934).

The spelling of 40425530 in words is "forty million, four hundred twenty-five thousand, five hundred thirty".