1040323020 has 48 divisors (see below), whose sum is σ = 3177715968. Its totient is φ = 252199360.

The previous prime is 1040323019. The next prime is 1040323049. The reversal of 1040323020 is 203230401.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787464 + ... + 788783.

It is an arithmetic number, because the mean of its divisors is an integer number (66202416).

Almost surely, 2^1040323020 is an apocalyptic number.

1040323020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040323020 is an abundant number, since it is smaller than the sum of its proper divisors (2137392948).

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

1040323020 is a wasteful number, since it uses less digits than its factorization.

1040323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576270 (or 1576268 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1040323020 is about 32254.0388168676. The cubic root of 1040323020 is about 1013.2642874335.

Adding to 1040323020 its reverse (203230401), we get a palindrome (1243553421).

The spelling of 1040323020 in words is "one billion, forty million, three hundred twenty-three thousand, twenty".