401407229 has 8 divisors (see below), whose sum is σ = 407742552. Its totient is φ = 395118400.

The previous prime is 401407219. The next prime is 401407231. The reversal of 401407229 is 922704104.

It can be written as a sum of positive squares in 4 ways, for example, as 269846329 + 131560900 = 16427^2 + 11470^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401407229 is a prime.

It is a super-2 number, since 2×401407229² = 322255526986916882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401407219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5987 + ... + 28959.

It is an arithmetic number, because the mean of its divisors is an integer number (50967819).

Almost surely, 2^401407229 is an apocalyptic number.

It is an amenable number.

401407229 is a deficient number, since it is larger than the sum of its proper divisors (6335323).

401407229 is a wasteful number, since it uses less digits than its factorization.

401407229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23247.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 401407229 is about 20035.1498372236. The cubic root of 401407229 is about 737.6693344387.

The spelling of 401407229 in words is "four hundred one million, four hundred seven thousand, two hundred twenty-nine".