780140450 has 24 divisors (see below), whose sum is σ = 1514153088. Its totient is φ = 298488080.

The previous prime is 780140441. The next prime is 780140479. The reversal of 780140450 is 54041087.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338042 + ... + 340341.

It is an arithmetic number, because the mean of its divisors is an integer number (63089712).

Almost surely, 2^780140450 is an apocalyptic number.

780140450 is a deficient number, since it is larger than the sum of its proper divisors (734012638).

780140450 is a wasteful number, since it uses less digits than its factorization.

780140450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678418 (or 678413 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 780140450 is about 27930.9944327086. The cubic root of 780140450 is about 920.5716555893.

The spelling of 780140450 in words is "seven hundred eighty million, one hundred forty thousand, four hundred fifty".