780140481 has 4 divisors (see below), whose sum is σ = 1040187312. Its totient is φ = 520093652.

The previous prime is 780140479. The next prime is 780140507. The reversal of 780140481 is 184041087.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 780140481 - 2¹ = 780140479 is a prime.

It is a super-2 number, since 2×780140481² = 1217238340189822722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (780140411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130023411 + ... + 130023416.

It is an arithmetic number, because the mean of its divisors is an integer number (260046828).

Almost surely, 2^780140481 is an apocalyptic number.

It is an amenable number.

780140481 is a deficient number, since it is larger than the sum of its proper divisors (260046831).

780140481 is a wasteful number, since it uses less digits than its factorization.

780140481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260046830.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 780140481 is about 27930.9949876477. The cubic root of 780140481 is about 920.5716677828.

The spelling of 780140481 in words is "seven hundred eighty million, one hundred forty thousand, four hundred eighty-one".