1401523040 has 48 divisors (see below), whose sum is σ = 3318365232. Its totient is φ = 559378944.

The previous prime is 1401522943. The next prime is 1401523093. The reversal of 1401523040 is 403251041.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65342 + ... + 84098.

It is an arithmetic number, because the mean of its divisors is an integer number (69132609).

Almost surely, 2^1401523040 is an apocalyptic number.

1401523040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401523040 is an abundant number, since it is smaller than the sum of its proper divisors (1916842192).

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

1401523040 is a wasteful number, since it uses less digits than its factorization.

1401523040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19239 (or 19231 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1401523040 is about 37436.9208135498. The cubic root of 1401523040 is about 1119.0944636362.

Adding to 1401523040 its reverse (403251041), we get a palindrome (1804774081).

The spelling of 1401523040 in words is "one billion, four hundred one million, five hundred twenty-three thousand, forty".