40425861 has 8 divisors (see below), whose sum is σ = 61601344. Its totient is φ = 23100480.

The previous prime is 40425851. The next prime is 40425893. The reversal of 40425861 is 16852404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40425861 - 2¹⁷ = 40294789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40425821) 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, 962500 + ... + 962541.

It is an arithmetic number, because the mean of its divisors is an integer number (7700168).

Almost surely, 2^40425861 is an apocalyptic number.

It is an amenable number.

40425861 is a deficient number, since it is larger than the sum of its proper divisors (21175483).

40425861 is a wasteful number, since it uses less digits than its factorization.

40425861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925051.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 40425861 is about 6358.1334525158. The cubic root of 40425861 is about 343.2045942273.

The spelling of 40425861 in words is "forty million, four hundred twenty-five thousand, eight hundred sixty-one".