1401251248 has 20 divisors (see below), whose sum is σ = 2874626280. Its totient is φ = 659412224.

The previous prime is 1401251237. The next prime is 1401251303. The reversal of 1401251248 is 8421521041.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575558 + ... + 2576101.

It is an arithmetic number, because the mean of its divisors is an integer number (143731314).

Almost surely, 2^1401251248 is an apocalyptic number.

It is an amenable number.

1401251248 is an abundant number, since it is smaller than the sum of its proper divisors (1473375032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401251248 is a wasteful number, since it uses less digits than its factorization.

1401251248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5151684 (or 5151678 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1401251248 is about 37433.2906381472. The cubic root of 1401251248 is about 1119.0221183904.

Adding to 1401251248 its reverse (8421521041), we get a palindrome (9822772289).

The spelling of 1401251248 in words is "one billion, four hundred one million, two hundred fifty-one thousand, two hundred forty-eight".