720936642 has 8 divisors (see below), whose sum is σ = 1441873296. Its totient is φ = 240312212.

The previous prime is 720936631. The next prime is 720936653. The reversal of 720936642 is 246639027.

It is an interprime number because it is at equal distance from previous prime (720936631) and next prime (720936653).

It is a sphenic number, since it is the product of 3 distinct primes.

720936642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 720936642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60078048 + ... + 60078059.

It is an arithmetic number, because the mean of its divisors is an integer number (180234162).

Almost surely, 2^720936642 is an apocalyptic number.

720936642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

720936642 is a wasteful number, since it uses less digits than its factorization.

720936642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120156112.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 720936642 is about 26850.2633506638. The cubic root of 720936642 is about 896.6694357065.

The spelling of 720936642 in words is "seven hundred twenty million, nine hundred thirty-six thousand, six hundred forty-two".