401469645 has 16 divisors (see below), whose sum is σ = 642885120. Its totient is φ = 213939264.

The previous prime is 401469643. The next prime is 401469659. The reversal of 401469645 is 546964104.

It is not a de Polignac number, because 401469645 - 2¹ = 401469643 is a prime.

It is a super-3 number, since 3×401469645³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401469641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8676 + ... + 29634.

It is an arithmetic number, because the mean of its divisors is an integer number (40180320).

Almost surely, 2^401469645 is an apocalyptic number.

It is an amenable number.

401469645 is a deficient number, since it is larger than the sum of its proper divisors (241415475).

401469645 is a wasteful number, since it uses less digits than its factorization.

401469645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22244.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 401469645 is about 20036.7074390979. The cubic root of 401469645 is about 737.7075665877.

The spelling of 401469645 in words is "four hundred one million, four hundred sixty-nine thousand, six hundred forty-five".