1400140401 has 16 divisors (see below), whose sum is σ = 2037547008. Its totient is φ = 848162000.

The previous prime is 1400140397. The next prime is 1400140409. The reversal of 1400140401 is 1040410041.

It is a cyclic number.

It is not a de Polignac number, because 1400140401 - 2² = 1400140397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1400140409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68560 + ... + 86606.

It is an arithmetic number, because the mean of its divisors is an integer number (127346688).

Almost surely, 2^1400140401 is an apocalyptic number.

1400140401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1400140401 is a deficient number, since it is larger than the sum of its proper divisors (637406607).

1400140401 is a wasteful number, since it uses less digits than its factorization.

1400140401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20412.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1400140401 is about 37418.4500079840. The cubic root of 1400140401 is about 1118.7263372709.

Adding to 1400140401 its reverse (1040410041), we get a palindrome (2440550442).

The spelling of 1400140401 in words is "one billion, four hundred million, one hundred forty thousand, four hundred one".