396069240 has 256 divisors, whose sum is σ = 1430784000. Its totient is φ = 85800960.

The previous prime is 396069239. The next prime is 396069287. The reversal of 396069240 is 42960693.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1729446 + ... + 1729674.

It is an arithmetic number, because the mean of its divisors is an integer number (5589000).

Almost surely, 2^396069240 is an apocalyptic number.

396069240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396069240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (715392000).

396069240 is an abundant number, since it is smaller than the sum of its proper divisors (1034714760).

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

396069240 is a wasteful number, since it uses less digits than its factorization.

396069240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 396069240 is about 19901.4883865504. The cubic root of 396069240 is about 734.3848432421.

The spelling of 396069240 in words is "three hundred ninety-six million, sixty-nine thousand, two hundred forty".