1401575493 has 16 divisors (see below), whose sum is σ = 1879560000. Its totient is φ = 928999680.

The previous prime is 1401575473. The next prime is 1401575561. The reversal of 1401575493 is 3945751041.

It is not a de Polignac number, because 1401575493 - 2¹² = 1401571397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401575443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 934258 + ... + 935756.

It is an arithmetic number, because the mean of its divisors is an integer number (117472500).

Almost surely, 2^1401575493 is an apocalyptic number.

It is an amenable number.

1401575493 is a deficient number, since it is larger than the sum of its proper divisors (477984507).

1401575493 is a wasteful number, since it uses less digits than its factorization.

1401575493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 1401575493 is about 37437.6213587349. The cubic root of 1401575493 is about 1119.1084244317.

The spelling of 1401575493 in words is "one billion, four hundred one million, five hundred seventy-five thousand, four hundred ninety-three".