718950420 has 72 divisors (see below), whose sum is σ = 2203352424. Its totient is φ = 189739008.

The previous prime is 718950377. The next prime is 718950433. The reversal of 718950420 is 24059817.

718950420 is a `hidden beast` number, since 7 + 189 + 50 + 420 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20088324 + 698862096 = 4482^2 + 26436^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3129 + ... + 38048.

It is an arithmetic number, because the mean of its divisors is an integer number (30602117).

Almost surely, 2^718950420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718950420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101676212).

718950420 is an abundant number, since it is smaller than the sum of its proper divisors (1484402004).

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

718950420 is a wasteful number, since it uses less digits than its factorization.

718950420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41289 (or 41284 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 718950420 is about 26813.2508286481. The cubic root of 718950420 is about 895.8452196632.

The spelling of 718950420 in words is "seven hundred eighteen million, nine hundred fifty thousand, four hundred twenty".