4013629 has 4 divisors (see below), whose sum is σ = 4152060. Its totient is φ = 3875200.

The previous prime is 4013623. The next prime is 4013641. The reversal of 4013629 is 9263104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1954404 + 2059225 = 1398^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 4013629 - 2³ = 4013621 is a prime.

It is a super-2 number, since 2×4013629² = 32218435499282, which contains 22 as substring.

It is a Duffinian number.

4013629 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013621) 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, 69172 + ... + 69229.

It is an arithmetic number, because the mean of its divisors is an integer number (1038015).

Almost surely, 2^4013629 is an apocalyptic number.

It is an amenable number.

4013629 is a deficient number, since it is larger than the sum of its proper divisors (138431).

4013629 is a wasteful number, since it uses less digits than its factorization.

4013629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138430.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 4013629 is about 2003.4043525959. The cubic root of 4013629 is about 158.9201898947.

The spelling of 4013629 in words is "four million, thirteen thousand, six hundred twenty-nine".