1020432402 has 24 divisors (see below), whose sum is σ = 2411931600. Its totient is φ = 309221880.

The previous prime is 1020432383. The next prime is 1020432403. The reversal of 1020432402 is 2042340201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1020432403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2576652 + ... + 2577047.

It is an arithmetic number, because the mean of its divisors is an integer number (100497150).

Almost surely, 2^1020432402 is an apocalyptic number.

1020432402 is an abundant number, since it is smaller than the sum of its proper divisors (1391499198).

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

1020432402 is a wasteful number, since it uses less digits than its factorization.

1020432402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153718 (or 5153715 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1020432402 is about 31944.2076439532. The cubic root of 1020432402 is about 1006.7649331486.

Adding to 1020432402 its reverse (2042340201), we get a palindrome (3062772603).

The spelling of 1020432402 in words is "one billion, twenty million, four hundred thirty-two thousand, four hundred two".