1023447516 has 192 divisors, whose sum is σ = 3100876800. Its totient is φ = 260789760.

The previous prime is 1023447493. The next prime is 1023447563. The reversal of 1023447516 is 6157443201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1658440 + ... + 1659056.

It is an arithmetic number, because the mean of its divisors is an integer number (16150400).

Almost surely, 2^1023447516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023447516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1550438400).

1023447516 is an abundant number, since it is smaller than the sum of its proper divisors (2077429284).

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

1023447516 is a wasteful number, since it uses less digits than its factorization.

1023447516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1023447516 is about 31991.3662727930. The cubic root of 1023447516 is about 1007.7555348517.

The spelling of 1023447516 in words is "one billion, twenty-three million, four hundred forty-seven thousand, five hundred sixteen".