1400040031 has 8 divisors (see below), whose sum is σ = 1511677440. Its totient is φ = 1288965792.

The previous prime is 1400040017. The next prime is 1400040113. The reversal of 1400040031 is 1300400041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1400040031 - 2⁷ = 1400039903 is a prime.

It is a super-2 number, since 2×1400040031² = 3920224176804961922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1400039993 and 1400040020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400040001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135616 + ... + 145573.

It is an arithmetic number, because the mean of its divisors is an integer number (188959680).

Almost surely, 2^1400040031 is an apocalyptic number.

1400040031 is a deficient number, since it is larger than the sum of its proper divisors (111637409).

1400040031 is a wasteful number, since it uses less digits than its factorization.

1400040031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281585.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1400040031 is about 37417.1088006543. The cubic root of 1400040031 is about 1118.6996044172.

Adding to 1400040031 its reverse (1300400041), we get a palindrome (2700440072).

The spelling of 1400040031 in words is "one billion, four hundred million, forty thousand, thirty-one".