740642507 has 4 divisors (see below), whose sum is σ = 807973656. Its totient is φ = 673311360.

The previous prime is 740642503. The next prime is 740642509. The reversal of 740642507 is 705246047.

740642507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 740642507 - 2² = 740642503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740642503) 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, 33665558 + ... + 33665579.

It is an arithmetic number, because the mean of its divisors is an integer number (201993414).

Almost surely, 2^740642507 is an apocalyptic number.

740642507 is a deficient number, since it is larger than the sum of its proper divisors (67331149).

740642507 is a wasteful number, since it uses less digits than its factorization.

740642507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67331148.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 740642507 is about 27214.7479687026. The cubic root of 740642507 is about 904.7658733206.

The spelling of 740642507 in words is "seven hundred forty million, six hundred forty-two thousand, five hundred seven".