901729449 has 8 divisors (see below), whose sum is σ = 1335895520. Its totient is φ = 601152948.

The previous prime is 901729403. The next prime is 901729469. The reversal of 901729449 is 944927109.

It is a happy number.

It is not a de Polignac number, because 901729449 - 2⁷ = 901729321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (901729469) 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, 16698667 + ... + 16698720.

It is an arithmetic number, because the mean of its divisors is an integer number (166986940).

Almost surely, 2^901729449 is an apocalyptic number.

It is an amenable number.

901729449 is a deficient number, since it is larger than the sum of its proper divisors (434166071).

901729449 is a wasteful number, since it uses less digits than its factorization.

901729449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33397396 (or 33397390 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 901729449 is about 30028.8103160948. The cubic root of 901729449 is about 966.1074202521.

The spelling of 901729449 in words is "nine hundred one million, seven hundred twenty-nine thousand, four hundred forty-nine".