1401192729 has 16 divisors (see below), whose sum is σ = 2166096000. Its totient is φ = 893513808.

The previous prime is 1401192703. The next prime is 1401192757. The reversal of 1401192729 is 9272911041.

It is not a de Polignac number, because 1401192729 - 2⁸ = 1401192473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401192693 and 1401192702.

It is not an unprimeable number, because it can be changed into a prime (1401192229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1127554 + ... + 1128795.

It is an arithmetic number, because the mean of its divisors is an integer number (135381000).

Almost surely, 2^1401192729 is an apocalyptic number.

It is an amenable number.

1401192729 is a deficient number, since it is larger than the sum of its proper divisors (764903271).

1401192729 is a wasteful number, since it uses less digits than its factorization.

1401192729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256381 (or 2256375 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1401192729 is about 37432.5089861740. The cubic root of 1401192729 is about 1119.0065406542.

The spelling of 1401192729 in words is "one billion, four hundred one million, one hundred ninety-two thousand, seven hundred twenty-nine".