1026639470 has 16 divisors (see below), whose sum is σ = 1851376608. Its totient is φ = 409894560.

The previous prime is 1026639463. The next prime is 1026639479. The reversal of 1026639470 is 749366201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026639479) 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, 89474 + ... + 100293.

It is an arithmetic number, because the mean of its divisors is an integer number (115711038).

Almost surely, 2^1026639470 is an apocalyptic number.

1026639470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1026639470 is a deficient number, since it is larger than the sum of its proper divisors (824737138).

1026639470 is a wasteful number, since it uses less digits than its factorization.

1026639470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190315.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1026639470 is about 32041.2151767064. The cubic root of 1026639470 is about 1008.8021187180.

The spelling of 1026639470 in words is "one billion, twenty-six million, six hundred thirty-nine thousand, four hundred seventy".