1042345420 has 12 divisors (see below), whose sum is σ = 2188925424. Its totient is φ = 416938160.

The previous prime is 1042345417. The next prime is 1042345439. The reversal of 1042345420 is 245432401.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26058616 + ... + 26058655.

It is an arithmetic number, because the mean of its divisors is an integer number (182410452).

Almost surely, 2^1042345420 is an apocalyptic number.

1042345420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042345420 is an abundant number, since it is smaller than the sum of its proper divisors (1146580004).

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

1042345420 is a wasteful number, since it uses less digits than its factorization.

1042345420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52117280 (or 52117278 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1042345420 is about 32285.3747074430. The cubic root of 1042345420 is about 1013.9204615838.

Adding to 1042345420 its reverse (245432401), we get a palindrome (1287777821).

The spelling of 1042345420 in words is "one billion, forty-two million, three hundred forty-five thousand, four hundred twenty".