401206392 has 128 divisors (see below), whose sum is σ = 1212321600. Its totient is φ = 122425344.

The previous prime is 401206391. The next prime is 401206427. The reversal of 401206392 is 293602104.

401206392 is a `hidden beast` number, since 4 + 0 + 1 + 20 + 639 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401206391) 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, 134388 + ... + 137340.

Almost surely, 2^401206392 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 401206392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606160800).

401206392 is an abundant number, since it is smaller than the sum of its proper divisors (811115208).

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

401206392 is a wasteful number, since it uses less digits than its factorization.

401206392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022 (or 3012 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 401206392 is about 20030.1370938893. The cubic root of 401206392 is about 737.5462873179.

Adding to 401206392 its reverse (293602104), we get a palindrome (694808496).

The spelling of 401206392 in words is "four hundred one million, two hundred six thousand, three hundred ninety-two".