790405380 has 72 divisors (see below), whose sum is σ = 2456063064. Its totient is φ = 205632000.

The previous prime is 790405379. The next prime is 790405387. The reversal of 790405380 is 83504097.

It can be written as a sum of positive squares in 4 ways, for example, as 53934336 + 736471044 = 7344^2 + 27138^2 .

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

It is not an unprimeable number, because it can be changed into a prime (790405387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46171 + ... + 60930.

It is an arithmetic number, because the mean of its divisors is an integer number (34111987).

Almost surely, 2^790405380 is an apocalyptic number.

It is an amenable number.

790405380 is an abundant number, since it is smaller than the sum of its proper divisors (1665657684).

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

790405380 is a wasteful number, since it uses less digits than its factorization.

790405380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107157 (or 107152 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 790405380 is about 28114.1491068110. The cubic root of 790405380 is about 924.5916405420.

The spelling of 790405380 in words is "seven hundred ninety million, four hundred five thousand, three hundred eighty".