1029397428 has 36 divisors (see below), whose sum is σ = 2739041760. Its totient is φ = 325072656.

The previous prime is 1029397399. The next prime is 1029397433. The reversal of 1029397428 is 8247939201.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 751800 + ... + 753167.

Almost surely, 2^1029397428 is an apocalyptic number.

1029397428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1029397428 is an abundant number, since it is smaller than the sum of its proper divisors (1709644332).

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

1029397428 is a wasteful number, since it uses less digits than its factorization.

1029397428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504996 (or 1504991 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1029397428 is about 32084.2239737850. The cubic root of 1029397428 is about 1009.7046576243.

The spelling of 1029397428 in words is "one billion, twenty-nine million, three hundred ninety-seven thousand, four hundred twenty-eight".