1036320420 has 192 divisors, whose sum is σ = 3186892800. Its totient is φ = 250698240.

The previous prime is 1036320409. The next prime is 1036320431. The reversal of 1036320420 is 240236301.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1036320409) and next prime (1036320431).

It is a super-3 number, since 3×1036320420³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3332065 + ... + 3332375.

It is an arithmetic number, because the mean of its divisors is an integer number (16598400).

Almost surely, 2^1036320420 is an apocalyptic number.

1036320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1036320420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1593446400).

1036320420 is an abundant number, since it is smaller than the sum of its proper divisors (2150572380).

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

1036320420 is a wasteful number, since it uses less digits than its factorization.

1036320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1036320420 is about 32191.9309765662. The cubic root of 1036320420 is about 1011.9631197275.

Adding to 1036320420 its reverse (240236301), we get a palindrome (1276556721).

The spelling of 1036320420 in words is "one billion, thirty-six million, three hundred twenty thousand, four hundred twenty".