1401411540 has 24 divisors (see below), whose sum is σ = 3923952480. Its totient is φ = 373709728.

The previous prime is 1401411523. The next prime is 1401411547. The reversal of 1401411540 is 451141041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401411547) 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, 11678370 + ... + 11678489.

It is an arithmetic number, because the mean of its divisors is an integer number (163498020).

Almost surely, 2^1401411540 is an apocalyptic number.

1401411540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401411540 is an abundant number, since it is smaller than the sum of its proper divisors (2522540940).

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

1401411540 is a wasteful number, since it uses less digits than its factorization.

1401411540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23356871 (or 23356869 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1401411540 is about 37435.4316123108. The cubic root of 1401411540 is about 1119.0647858408.

Adding to 1401411540 its reverse (451141041), we get a palindrome (1852552581).

The spelling of 1401411540 in words is "one billion, four hundred one million, four hundred eleven thousand, five hundred forty".