1031620434 has 32 divisors (see below), whose sum is σ = 2276152704. Its totient is φ = 309678720.

The previous prime is 1031620433. The next prime is 1031620459. The reversal of 1031620434 is 4340261301.

It is not an unprimeable number, because it can be changed into a prime (1031620433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158094 + ... + 164489.

It is an arithmetic number, because the mean of its divisors is an integer number (71129772).

Almost surely, 2^1031620434 is an apocalyptic number.

1031620434 is an abundant number, since it is smaller than the sum of its proper divisors (1244532270).

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

1031620434 is a wasteful number, since it uses less digits than its factorization.

1031620434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322642.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1031620434 is about 32118.8485783659. The cubic root of 1031620434 is about 1010.4309613976.

Adding to 1031620434 its reverse (4340261301), we get a palindrome (5371881735).

The spelling of 1031620434 in words is "one billion, thirty-one million, six hundred twenty thousand, four hundred thirty-four".