40012425 has 36 divisors (see below), whose sum is σ = 72172464. Its totient is φ = 21189600.

The previous prime is 40012417. The next prime is 40012447. The reversal of 40012425 is 52421004.

It is not a de Polignac number, because 40012425 - 2³ = 40012417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40012398 and 40012407.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36130 + ... + 37220.

Almost surely, 2^40012425 is an apocalyptic number.

40012425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40012425 is a deficient number, since it is larger than the sum of its proper divisors (32160039).

40012425 is a wasteful number, since it uses less digits than its factorization.

40012425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40012425 is about 6325.5375265664. The cubic root of 40012425 is about 342.0305964214.

Adding to 40012425 its reverse (52421004), we get a palindrome (92433429).

The spelling of 40012425 in words is "forty million, twelve thousand, four hundred twenty-five".