1200429146 has 24 divisors (see below), whose sum is σ = 2111141376. Its totient is φ = 510413400.

The previous prime is 1200429091. The next prime is 1200429157. The reversal of 1200429146 is 6419240021.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35780 + ... + 60671.

It is an arithmetic number, because the mean of its divisors is an integer number (87964224).

Almost surely, 2^1200429146 is an apocalyptic number.

1200429146 is a deficient number, since it is larger than the sum of its proper divisors (910712230).

1200429146 is a wasteful number, since it uses less digits than its factorization.

1200429146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96594 (or 96587 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1200429146 is about 34647.2097866480. The cubic root of 1200429146 is about 1062.7852306611.

Adding to 1200429146 its reverse (6419240021), we get a palindrome (7619669167).

The spelling of 1200429146 in words is "one billion, two hundred million, four hundred twenty-nine thousand, one hundred forty-six".