761630445 has 40 divisors (see below), whose sum is σ = 1387719960. Its totient is φ = 399530880.

The previous prime is 761630423. The next prime is 761630449. The reversal of 761630445 is 544036167.

It is a happy number.

761630445 is a `hidden beast` number, since 7 + 616 + 30 + 4 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 43283241 + 718347204 = 6579^2 + 26802^2 .

It is not a de Polignac number, because 761630445 - 2⁶ = 761630381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761630449) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9291 + ... + 40119.

It is an arithmetic number, because the mean of its divisors is an integer number (34692999).

Almost surely, 2^761630445 is an apocalyptic number.

It is an amenable number.

761630445 is a deficient number, since it is larger than the sum of its proper divisors (626089515).

761630445 is a wasteful number, since it uses less digits than its factorization.

761630445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30907 (or 30898 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 761630445 is about 27597.6528893310. The cubic root of 761630445 is about 913.2326540978.

The spelling of 761630445 in words is "seven hundred sixty-one million, six hundred thirty thousand, four hundred forty-five".