1020429678 has 16 divisors (see below), whose sum is σ = 2063791440. Its totient is φ = 336321216.

The previous prime is 1020429677. The next prime is 1020429701. The reversal of 1020429678 is 8769240201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020429671) 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, 954925 + ... + 955992.

It is an arithmetic number, because the mean of its divisors is an integer number (128986965).

Almost surely, 2^1020429678 is an apocalyptic number.

1020429678 is an abundant number, since it is smaller than the sum of its proper divisors (1043361762).

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

1020429678 is a wasteful number, since it uses less digits than its factorization.

1020429678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911011.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1020429678 is about 31944.1650070870. The cubic root of 1020429678 is about 1006.7640373094.

Adding to 1020429678 its reverse (8769240201), we get a palindrome (9789669879).

The spelling of 1020429678 in words is "one billion, twenty million, four hundred twenty-nine thousand, six hundred seventy-eight".