1020433401 has 24 divisors (see below), whose sum is σ = 1603075656. Its totient is φ = 621734400.

The previous prime is 1020433391. The next prime is 1020433409. The reversal of 1020433401 is 1043340201.

It can be written as a sum of positive squares in 4 ways, for example, as 495107001 + 525326400 = 22251^2 + 22920^2 .

It is not a de Polignac number, because 1020433401 - 2⁵ = 1020433369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020433409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31360 + ... + 54993.

It is an arithmetic number, because the mean of its divisors is an integer number (66794819).

Almost surely, 2^1020433401 is an apocalyptic number.

It is an amenable number.

1020433401 is a deficient number, since it is larger than the sum of its proper divisors (582642255).

1020433401 is a wasteful number, since it uses less digits than its factorization.

1020433401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86473 (or 86470 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1020433401 is about 31944.2232805871. The cubic root of 1020433401 is about 1006.7652616884.

Adding to 1020433401 its reverse (1043340201), we get a palindrome (2063773602).

The spelling of 1020433401 in words is "one billion, twenty million, four hundred thirty-three thousand, four hundred one".