401628495 has 16 divisors (see below), whose sum is σ = 650741760. Its totient is φ = 211489824.

The previous prime is 401628473. The next prime is 401628499. The reversal of 401628495 is 594826104.

It is not a de Polignac number, because 401628495 - 2⁵ = 401628463 is a prime.

It is a super-2 number, since 2×401628495² = 322610895991930050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401628499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168279 + ... + 170648.

It is an arithmetic number, because the mean of its divisors is an integer number (40671360).

Almost surely, 2^401628495 is an apocalyptic number.

401628495 is a deficient number, since it is larger than the sum of its proper divisors (249113265).

401628495 is a wasteful number, since it uses less digits than its factorization.

401628495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339014.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 401628495 is about 20040.6710216998. The cubic root of 401628495 is about 737.8048503186.

The spelling of 401628495 in words is "four hundred one million, six hundred twenty-eight thousand, four hundred ninety-five".