40425651 has 36 divisors (see below), whose sum is σ = 69819568. Its totient is φ = 22077792.

The previous prime is 40425647. The next prime is 40425653. The reversal of 40425651 is 15652404.

40425651 is a `hidden beast` number, since 4 + 0 + 4 + 2 + 5 + 651 = 666.

40425651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40425651 - 2² = 40425647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40425653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 32721 + ... + 33933.

Almost surely, 2^40425651 is an apocalyptic number.

40425651 is a deficient number, since it is larger than the sum of its proper divisors (29393917).

40425651 is a wasteful number, since it uses less digits than its factorization.

40425651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 40425651 is about 6358.1169382137. The cubic root of 40425651 is about 343.2039999452.

The spelling of 40425651 in words is "forty million, four hundred twenty-five thousand, six hundred fifty-one".