1408718157 has 64 divisors (see below), whose sum is σ = 2394900480. Its totient is φ = 715392000.

The previous prime is 1408718153. The next prime is 1408718219. The reversal of 1408718157 is 7518178041.

It is not a de Polignac number, because 1408718157 - 2² = 1408718153 is a prime.

It is a super-2 number, since 2×1408718157² = 3968973691722953298, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1408718153) 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 63 ways as a sum of consecutive naturals, for example, 2343657 + ... + 2344257.

It is an arithmetic number, because the mean of its divisors is an integer number (37420320).

Almost surely, 2^1408718157 is an apocalyptic number.

It is an amenable number.

1408718157 is a deficient number, since it is larger than the sum of its proper divisors (986182323).

1408718157 is a wasteful number, since it uses less digits than its factorization.

1408718157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 62720, while the sum is 42.

The square root of 1408718157 is about 37532.8943328382. The cubic root of 1408718157 is about 1121.0062589788.

The spelling of 1408718157 in words is "one billion, four hundred eight million, seven hundred eighteen thousand, one hundred fifty-seven".