401629465 has 4 divisors (see below), whose sum is σ = 481955364. Its totient is φ = 321303568.

The previous prime is 401629453. The next prime is 401629477. The reversal of 401629465 is 564926104.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (401629453) and next prime (401629477).

It can be written as a sum of positive squares in 2 ways, for example, as 47775744 + 353853721 = 6912^2 + 18811^2 .

It is a cyclic number.

It is not a de Polignac number, because 401629465 - 2¹¹ = 401627417 is a prime.

It is a super-2 number, since 2×401629465² = 322612454312372450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40162942 + ... + 40162951.

It is an arithmetic number, because the mean of its divisors is an integer number (120488841).

Almost surely, 2^401629465 is an apocalyptic number.

It is an amenable number.

401629465 is a deficient number, since it is larger than the sum of its proper divisors (80325899).

401629465 is an equidigital number, since it uses as much as digits as its factorization.

401629465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80325898.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 401629465 is about 20040.6952224717. The cubic root of 401629465 is about 737.8054442922.

The spelling of 401629465 in words is "four hundred one million, six hundred twenty-nine thousand, four hundred sixty-five".