71120442 has 16 divisors (see below), whose sum is σ = 142391232. Its totient is φ = 23681760.

The previous prime is 71120431. The next prime is 71120453. The reversal of 71120442 is 24402117.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71120431) and next prime (71120453).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438 + ... + 11934.

It is an arithmetic number, because the mean of its divisors is an integer number (8899452).

Almost surely, 2^71120442 is an apocalyptic number.

71120442 is an abundant number, since it is smaller than the sum of its proper divisors (71270790).

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

71120442 is a wasteful number, since it uses less digits than its factorization.

71120442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12533.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 71120442 is about 8433.2936626208. The cubic root of 71120442 is about 414.3157874438.

Adding to 71120442 its reverse (24402117), we get a palindrome (95522559).

The spelling of 71120442 in words is "seventy-one million, one hundred twenty thousand, four hundred forty-two".