140396446 has 16 divisors (see below), whose sum is σ = 212352768. Its totient is φ = 69615000.

The previous prime is 140396437. The next prime is 140396449. The reversal of 140396446 is 644693041.

It is a super-2 number, since 2×140396446² = 39422324098861832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140396449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186571 + ... + 187321.

It is an arithmetic number, because the mean of its divisors is an integer number (13272048).

Almost surely, 2^140396446 is an apocalyptic number.

140396446 is a deficient number, since it is larger than the sum of its proper divisors (71956322).

140396446 is a wasteful number, since it uses less digits than its factorization.

140396446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 140396446 is about 11848.9006241086. The cubic root of 140396446 is about 519.7390776778.

The spelling of 140396446 in words is "one hundred forty million, three hundred ninety-six thousand, four hundred forty-six".