1401405250 has 64 divisors (see below), whose sum is σ = 3021587712. Its totient is φ = 476736000.

The previous prime is 1401405233. The next prime is 1401405263. The reversal of 1401405250 is 525041041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226194 + ... + 232306.

It is an arithmetic number, because the mean of its divisors is an integer number (47212308).

Almost surely, 2^1401405250 is an apocalyptic number.

1401405250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401405250 is an abundant number, since it is smaller than the sum of its proper divisors (1620182462).

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

1401405250 is a wasteful number, since it uses less digits than its factorization.

1401405250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6268 (or 6258 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1401405250 is about 37435.3476008972. The cubic root of 1401405250 is about 1119.0631115936.

Adding to 1401405250 its reverse (525041041), we get a palindrome (1926446291).

The spelling of 1401405250 in words is "one billion, four hundred one million, four hundred five thousand, two hundred fifty".