744527401 has 4 divisors (see below), whose sum is σ = 744759252. Its totient is φ = 744295552.

The previous prime is 744527389. The next prime is 744527473. The reversal of 744527401 is 104725447.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104725447 = 47 ⋅2228201.

It can be written as a sum of positive squares in 2 ways, for example, as 540609001 + 203918400 = 23251^2 + 14280^2 .

It is a cyclic number.

It is not a de Polignac number, because 744527401 - 2¹⁵ = 744494633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (744527101) 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, 111040 + ... + 117553.

It is an arithmetic number, because the mean of its divisors is an integer number (186189813).

Almost surely, 2^744527401 is an apocalyptic number.

It is an amenable number.

744527401 is a deficient number, since it is larger than the sum of its proper divisors (231851).

744527401 is a wasteful number, since it uses less digits than its factorization.

744527401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231850.

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 744527401 is about 27286.0294106709. The cubic root of 744527401 is about 906.3450390317.

The spelling of 744527401 in words is "seven hundred forty-four million, five hundred twenty-seven thousand, four hundred one".