101405442 has 32 divisors (see below), whose sum is σ = 215237952. Its totient is φ = 31739904.

The previous prime is 101405429. The next prime is 101405453. The reversal of 101405442 is 244504101.

It is a happy 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, 57993 + ... + 59715.

It is an arithmetic number, because the mean of its divisors is an integer number (6726186).

Almost surely, 2^101405442 is an apocalyptic number.

101405442 is an abundant number, since it is smaller than the sum of its proper divisors (113832510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101405442 is a wasteful number, since it uses less digits than its factorization.

101405442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 101405442 is about 10070.0269115827. The cubic root of 101405442 is about 466.3232697087.

Adding to 101405442 its reverse (244504101), we get a palindrome (345909543).

The spelling of 101405442 in words is "one hundred one million, four hundred five thousand, four hundred forty-two".