401744694 has 32 divisors (see below), whose sum is σ = 867767040. Its totient is φ = 123260832.

The previous prime is 401744687. The next prime is 401744699. The reversal of 401744694 is 496447104.

It is a super-3 number, since 3×401744694³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401744699) 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, 20829 + ... + 35175.

It is an arithmetic number, because the mean of its divisors is an integer number (27117720).

Almost surely, 2^401744694 is an apocalyptic number.

401744694 is an abundant number, since it is smaller than the sum of its proper divisors (466022346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401744694 is a wasteful number, since it uses less digits than its factorization.

401744694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14724.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 401744694 is about 20043.5698916136. The cubic root of 401744694 is about 737.8759972618.

The spelling of 401744694 in words is "four hundred one million, seven hundred forty-four thousand, six hundred ninety-four".