1528430970 has 64 divisors (see below), whose sum is σ = 4023976320. Its totient is φ = 368467200.

The previous prime is 1528430941. The next prime is 1528430971. The reversal of 1528430970 is 790348251.

It is a super-2 number, since 2×1528430970² = 4672202460110281800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1528430971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46936 + ... + 72524.

It is an arithmetic number, because the mean of its divisors is an integer number (62874630).

Almost surely, 2^1528430970 is an apocalyptic number.

1528430970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1528430970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2011988160).

1528430970 is an abundant number, since it is smaller than the sum of its proper divisors (2495545350).

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

1528430970 is a wasteful number, since it uses less digits than its factorization.

1528430970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25791.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1528430970 is about 39095.1527685978. The cubic root of 1528430970 is about 1151.9013210590.

The spelling of 1528430970 in words is "one billion, five hundred twenty-eight million, four hundred thirty thousand, nine hundred seventy".