396705270 has 32 divisors (see below), whose sum is σ = 1025331552. Its totient is φ = 97650432.

The previous prime is 396705263. The next prime is 396705289. The reversal of 396705270 is 72507693.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508207 + ... + 508986.

It is an arithmetic number, because the mean of its divisors is an integer number (32041611).

Almost surely, 2^396705270 is an apocalyptic number.

396705270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

396705270 is an abundant number, since it is smaller than the sum of its proper divisors (628626282).

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

396705270 is a wasteful number, since it uses less digits than its factorization.

396705270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017216.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 396705270 is about 19917.4614346307. The cubic root of 396705270 is about 734.7777383395. Note that the first 4 decimals are identical.

The spelling of 396705270 in words is "three hundred ninety-six million, seven hundred five thousand, two hundred seventy".