742601765 has 8 divisors (see below), whose sum is σ = 891581208. Its totient is φ = 593775360.

The previous prime is 742601723. The next prime is 742601767. The reversal of 742601765 is 567106247.

It can be written as a sum of positive squares in 4 ways, for example, as 194714116 + 547887649 = 13954^2 + 23407^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 742601765 - 2¹⁶ = 742536229 is a prime.

It is a super-2 number, since 2×742601765² = 1102914762762230450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742601767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27296 + ... + 47225.

It is an arithmetic number, because the mean of its divisors is an integer number (111447651).

Almost surely, 2^742601765 is an apocalyptic number.

It is an amenable number.

742601765 is a deficient number, since it is larger than the sum of its proper divisors (148979443).

742601765 is a wasteful number, since it uses less digits than its factorization.

742601765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76519.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 742601765 is about 27250.7204491918. The cubic root of 742601765 is about 905.5629780604.

The spelling of 742601765 in words is "seven hundred forty-two million, six hundred one thousand, seven hundred sixty-five".