1020542234 has 16 divisors (see below), whose sum is σ = 1594736640. Its totient is φ = 489385440.

The previous prime is 1020542213. The next prime is 1020542239. The reversal of 1020542234 is 4322450201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1020542239) 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, 100634 + ... + 110309.

It is an arithmetic number, because the mean of its divisors is an integer number (99671040).

Almost surely, 2^1020542234 is an apocalyptic number.

1020542234 is a deficient number, since it is larger than the sum of its proper divisors (574194406).

1020542234 is a wasteful number, since it uses less digits than its factorization.

1020542234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211045.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1020542234 is about 31945.9267200061. The cubic root of 1020542234 is about 1006.8010521635.

Adding to 1020542234 its reverse (4322450201), we get a palindrome (5342992435).

The spelling of 1020542234 in words is "one billion, twenty million, five hundred forty-two thousand, two hundred thirty-four".