1401433249 has 8 divisors (see below), whose sum is σ = 1430434080. Its totient is φ = 1372727136.

The previous prime is 1401433247. The next prime is 1401433273. The reversal of 1401433249 is 9423341041.

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

It is a cyclic number.

It is not a de Polignac number, because 1401433249 - 2¹ = 1401433247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401433249.

It is not an unprimeable number, because it can be changed into a prime (1401433247) 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, 64059 + ... + 83104.

It is an arithmetic number, because the mean of its divisors is an integer number (178804260).

Almost surely, 2^1401433249 is an apocalyptic number.

It is an amenable number.

1401433249 is a deficient number, since it is larger than the sum of its proper divisors (29000831).

1401433249 is a wasteful number, since it uses less digits than its factorization.

1401433249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147359.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1401433249 is about 37435.7215637685. The cubic root of 1401433249 is about 1119.0705642177.

The spelling of 1401433249 in words is "one billion, four hundred one million, four hundred thirty-three thousand, two hundred forty-nine".