1040420434 has 16 divisors (see below), whose sum is σ = 1660831128. Its totient is φ = 487121152.

The previous prime is 1040420431. The next prime is 1040420461. The reversal of 1040420434 is 4340240401.

It can be written as a sum of positive squares in 4 ways, for example, as 990675625 + 49744809 = 31475^2 + 7053^2 .

It is not an unprimeable number, because it can be changed into a prime (1040420431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70969 + ... + 84364.

Almost surely, 2^1040420434 is an apocalyptic number.

1040420434 is a deficient number, since it is larger than the sum of its proper divisors (620410694).

1040420434 is a wasteful number, since it uses less digits than its factorization.

1040420434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155549.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1040420434 is about 32255.5488869745. The cubic root of 1040420434 is about 1013.2959132025.

Adding to 1040420434 its reverse (4340240401), we get a palindrome (5380660835).

The spelling of 1040420434 in words is "one billion, forty million, four hundred twenty thousand, four hundred thirty-four".