1020345416 has 16 divisors (see below), whose sum is σ = 1914243900. Its totient is φ = 509880384.

The previous prime is 1020345413. The next prime is 1020345433. The reversal of 1020345416 is 6145430201.

It can be written as a sum of positive squares in 2 ways, for example, as 637360516 + 382984900 = 25246^2 + 19570^2 .

It is a super-2 number, since 2×1020345416² = 2082209535904426112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020345413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21335 + ... + 49958.

Almost surely, 2^1020345416 is an apocalyptic number.

It is an amenable number.

1020345416 is a deficient number, since it is larger than the sum of its proper divisors (893898484).

1020345416 is a wasteful number, since it uses less digits than its factorization.

1020345416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73088 (or 73084 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1020345416 is about 31942.8460848435. The cubic root of 1020345416 is about 1006.7363253601.

Adding to 1020345416 its reverse (6145430201), we get a palindrome (7165775617).

The spelling of 1020345416 in words is "one billion, twenty million, three hundred forty-five thousand, four hundred sixteen".