401769396 has 96 divisors (see below), whose sum is σ = 1205308160. Its totient is φ = 114791256.

The previous prime is 401769391. The next prime is 401769397. The reversal of 401769396 is 693967104.

401769396 is a `hidden beast` number, since 401 + 76 + 93 + 96 = 666.

It is a super-2 number, since 2×401769396² = 322837295124409632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401769391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57395625 + ... + 57395631.

Almost surely, 2^401769396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401769396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602654080).

401769396 is an abundant number, since it is smaller than the sum of its proper divisors (803538764).

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

401769396 is an frugal number, since it uses more digits than its factorization.

401769396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 12 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 401769396 is about 20044.1860897368. The cubic root of 401769396 is about 737.8911201658.

Multiplying 401769396 by its product of nonzero digits (244944), we get a square (98411002933824 = 9920232²).

The spelling of 401769396 in words is "four hundred one million, seven hundred sixty-nine thousand, three hundred ninety-six".