40425029 has 4 divisors (see below), whose sum is σ = 41285184. Its totient is φ = 39564876.

The previous prime is 40425017. The next prime is 40425107. The reversal of 40425029 is 92052404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40425029 - 2⁴ = 40425013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40424989 and 40425007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40425529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430007 + ... + 430100.

It is an arithmetic number, because the mean of its divisors is an integer number (10321296).

Almost surely, 2^40425029 is an apocalyptic number.

It is an amenable number.

40425029 is a deficient number, since it is larger than the sum of its proper divisors (860155).

40425029 is an equidigital number, since it uses as much as digits as its factorization.

40425029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860154.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40425029 is about 6358.0680241721. The cubic root of 40425029 is about 343.2022397263.

The spelling of 40425029 in words is "forty million, four hundred twenty-five thousand, twenty-nine".