1401414240 has 48 divisors (see below), whose sum is σ = 4414456368. Its totient is φ = 373710336.

The previous prime is 1401414191. The next prime is 1401414251. The reversal of 1401414240 is 424141041.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1459327 + ... + 1460286.

It is an arithmetic number, because the mean of its divisors is an integer number (91967841).

Almost surely, 2^1401414240 is an apocalyptic number.

1401414240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401414240 is an abundant number, since it is smaller than the sum of its proper divisors (3013042128).

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

1401414240 is a wasteful number, since it uses less digits than its factorization.

1401414240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919631 (or 2919623 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1401414240 is about 37435.4676743860. The cubic root of 1401414240 is about 1119.0655045146.

Adding to 1401414240 its reverse (424141041), we get a palindrome (1825555281).

The spelling of 1401414240 in words is "one billion, four hundred one million, four hundred fourteen thousand, two hundred forty".