405929201 has 4 divisors (see below), whose sum is σ = 409948404. Its totient is φ = 401910000.

The previous prime is 405929171. The next prime is 405929287. The reversal of 405929201 is 102929504.

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 314707600 + 91221601 = 17740^2 + 9551^2 .

It is a cyclic number.

It is not a de Polignac number, because 405929201 - 2⁶ = 405929137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405929291) 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, 2009450 + ... + 2009651.

It is an arithmetic number, because the mean of its divisors is an integer number (102487101).

Almost surely, 2^405929201 is an apocalyptic number.

It is an amenable number.

405929201 is a deficient number, since it is larger than the sum of its proper divisors (4019203).

405929201 is a wasteful number, since it uses less digits than its factorization.

405929201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019202.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 405929201 is about 20147.6847553261. The cubic root of 405929201 is about 740.4290189396.

The spelling of 405929201 in words is "four hundred five million, nine hundred twenty-nine thousand, two hundred one".