1401889834 has 8 divisors (see below), whose sum is σ = 2103761088. Its totient is φ = 700636140.

The previous prime is 1401889831. The next prime is 1401889849. The reversal of 1401889834 is 4389881041.

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

It is not an unprimeable number, because it can be changed into a prime (1401889831) 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, 148672 + ... + 157819.

It is an arithmetic number, because the mean of its divisors is an integer number (262970136).

Almost surely, 2^1401889834 is an apocalyptic number.

1401889834 is a deficient number, since it is larger than the sum of its proper divisors (701871254).

1401889834 is a wasteful number, since it uses less digits than its factorization.

1401889834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308780.

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 1401889834 is about 37441.8193201132. The cubic root of 1401889834 is about 1119.1920815655.

The spelling of 1401889834 in words is "one billion, four hundred one million, eight hundred eighty-nine thousand, eight hundred thirty-four".