396766542 has 16 divisors (see below), whose sum is σ = 799782912. Its totient is φ = 131213880.

The previous prime is 396766541. The next prime is 396766571. The reversal of 396766542 is 245667693.

It is a junction number, because it is equal to n+sod(n) for n = 396766491 and 396766500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396766541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259584 + ... + 261107.

It is an arithmetic number, because the mean of its divisors is an integer number (49986432).

Almost surely, 2^396766542 is an apocalyptic number.

396766542 is an abundant number, since it is smaller than the sum of its proper divisors (403016370).

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

396766542 is a wasteful number, since it uses less digits than its factorization.

396766542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520823.

The product of its digits is 1632960, while the sum is 48.

The square root of 396766542 is about 19918.9995230684. Note that the first 3 decimals coincide. The cubic root of 396766542 is about 734.8155657371.

The spelling of 396766542 in words is "three hundred ninety-six million, seven hundred sixty-six thousand, five hundred forty-two".