1400041407 has 4 divisors (see below), whose sum is σ = 1866721880. Its totient is φ = 933360936.

The previous prime is 1400041361. The next prime is 1400041417. The reversal of 1400041407 is 7041400041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1400041407 - 2⁸ = 1400041151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400041417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233340232 + ... + 233340237.

It is an arithmetic number, because the mean of its divisors is an integer number (466680470).

Almost surely, 2^1400041407 is an apocalyptic number.

1400041407 is a deficient number, since it is larger than the sum of its proper divisors (466680473).

1400041407 is an equidigital number, since it uses as much as digits as its factorization.

1400041407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466680472.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 1400041407 is about 37417.1271879603. The cubic root of 1400041407 is about 1118.6999709139.

Adding to 1400041407 its reverse (7041400041), we get a palindrome (8441441448).

The spelling of 1400041407 in words is "one billion, four hundred million, forty-one thousand, four hundred seven".