1400643142 has 8 divisors (see below), whose sum is σ = 2101316256. Its totient is φ = 700204392.

The previous prime is 1400643113. The next prime is 1400643163. The reversal of 1400643142 is 2413460041.

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

It is a super-2 number, since 2×1400643142² = 3923602422463264328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42798 + ... + 68065.

It is an arithmetic number, because the mean of its divisors is an integer number (262664532).

Almost surely, 2^1400643142 is an apocalyptic number.

1400643142 is a deficient number, since it is larger than the sum of its proper divisors (700673114).

1400643142 is a wasteful number, since it uses less digits than its factorization.

1400643142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117182.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1400643142 is about 37425.1672274153. The cubic root of 1400643142 is about 1118.8602196288.

The spelling of 1400643142 in words is "one billion, four hundred million, six hundred forty-three thousand, one hundred forty-two".