755744740 has 24 divisors (see below), whose sum is σ = 1592975160. Its totient is φ = 301171968.

The previous prime is 755744729. The next prime is 755744761. The reversal of 755744740 is 47447557.

It can be written as a sum of positive squares in 4 ways, for example, as 484416 + 755260324 = 696^2 + 27482^2 .

It is a super-2 number, since 2×755744740² = 1142300224075335200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64857 + ... + 75616.

It is an arithmetic number, because the mean of its divisors is an integer number (66373965).

Almost surely, 2^755744740 is an apocalyptic number.

It is an amenable number.

755744740 is an abundant number, since it is smaller than the sum of its proper divisors (837230420).

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

755744740 is a wasteful number, since it uses less digits than its factorization.

755744740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140751 (or 140749 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 43.

The square root of 755744740 is about 27490.8119196214. The cubic root of 755744740 is about 910.8741509601.

The spelling of 755744740 in words is "seven hundred fifty-five million, seven hundred forty-four thousand, seven hundred forty".