401729045 has 8 divisors (see below), whose sum is σ = 483855360. Its totient is φ = 320196240.

The previous prime is 401729011. The next prime is 401729051. The reversal of 401729045 is 540927104.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-401729045 is a prime.

It is a super-2 number, since 2×401729045² = 322772451193224050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146885 + ... + 149594.

It is an arithmetic number, because the mean of its divisors is an integer number (60481920).

Almost surely, 2^401729045 is an apocalyptic number.

It is an amenable number.

401729045 is a deficient number, since it is larger than the sum of its proper divisors (82126315).

401729045 is a wasteful number, since it uses less digits than its factorization.

401729045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296755.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 401729045 is about 20043.1795132409. The cubic root of 401729045 is about 737.8664164081.

The spelling of 401729045 in words is "four hundred one million, seven hundred twenty-nine thousand, forty-five".