40282429 has 4 divisors (see below), whose sum is σ = 43944480. Its totient is φ = 36620380.

The previous prime is 40282393. The next prime is 40282439. The reversal of 40282429 is 92428204.

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 40282429 - 2¹³ = 40274237 is a prime.

It is a super-2 number, since 2×40282429² = 3245348172280082, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40282429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40282439) 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, 1831009 + ... + 1831030.

It is an arithmetic number, because the mean of its divisors is an integer number (10986120).

Almost surely, 2^40282429 is an apocalyptic number.

It is an amenable number.

40282429 is a deficient number, since it is larger than the sum of its proper divisors (3662051).

40282429 is a wasteful number, since it uses less digits than its factorization.

40282429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662050.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 40282429 is about 6346.8440188806. The cubic root of 40282429 is about 342.7982136402.

The spelling of 40282429 in words is "forty million, two hundred eighty-two thousand, four hundred twenty-nine".