101440742 has 32 divisors (see below), whose sum is σ = 170655744. Its totient is φ = 44906400.

The previous prime is 101440739. The next prime is 101440763. The reversal of 101440742 is 247044101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101867 + ... + 102857.

It is an arithmetic number, because the mean of its divisors is an integer number (5332992).

Almost surely, 2^101440742 is an apocalyptic number.

101440742 is a deficient number, since it is larger than the sum of its proper divisors (69215002).

101440742 is a wasteful number, since it uses less digits than its factorization.

101440742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 101440742 is about 10071.7794852747. The cubic root of 101440742 is about 466.3773736482.

Adding to 101440742 its reverse (247044101), we get a palindrome (348484843).

The spelling of 101440742 in words is "one hundred one million, four hundred forty thousand, seven hundred forty-two".