40245029 has 4 divisors (see below), whose sum is σ = 43903680. Its totient is φ = 36586380.

The previous prime is 40245017. The next prime is 40245047. The reversal of 40245029 is 92054204.

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 40245029 - 2¹² = 40240933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40244989 and 40245007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40245229) 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, 1829309 + ... + 1829330.

It is an arithmetic number, because the mean of its divisors is an integer number (10975920).

Almost surely, 2^40245029 is an apocalyptic number.

It is an amenable number.

40245029 is a deficient number, since it is larger than the sum of its proper divisors (3658651).

40245029 is a wasteful number, since it uses less digits than its factorization.

40245029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658650.

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

The square root of 40245029 is about 6343.8969884449. The cubic root of 40245029 is about 342.6920910841.

The spelling of 40245029 in words is "forty million, two hundred forty-five thousand, twenty-nine".