720370 has 32 divisors (see below), whose sum is σ = 1524096. Its totient is φ = 240000.

The previous prime is 720367. The next prime is 720373. The reversal of 720370 is 73027.

It is an interprime number because it is at equal distance from previous prime (720367) and next prime (720373).

It is not an unprimeable number, because it can be changed into a prime (720373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2745 + ... + 2995.

It is an arithmetic number, because the mean of its divisors is an integer number (47628).

2⁷²⁰³⁷⁰ is an apocalyptic number.

720370 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

720370 is an abundant number, since it is smaller than the sum of its proper divisors (803726).

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

720370 is a wasteful number, since it uses less digits than its factorization.

720370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306.

The product of its (nonzero) digits is 294, while the sum is 19.

The square root of 720370 is about 848.7461340118. The cubic root of 720370 is about 89.6434452627.

Adding to 720370 its reverse (73027), we get a palindrome (793397).

The spelling of 720370 in words is "seven hundred twenty thousand, three hundred seventy", and thus it is an iban number.