1358569490 has 16 divisors (see below), whose sum is σ = 2445845760. Its totient is φ = 543334320.

The previous prime is 1358569423. The next prime is 1358569561. The reversal of 1358569490 is 949658531.

It is a happy number.

It is a super-2 number, since 2×1358569490² = 3691422118317720200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102335 + ... + 114845.

It is an arithmetic number, because the mean of its divisors is an integer number (152865360).

Almost surely, 2^1358569490 is an apocalyptic number.

1358569490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1358569490 is a deficient number, since it is larger than the sum of its proper divisors (1087276270).

1358569490 is a wasteful number, since it uses less digits than its factorization.

1358569490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23377.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 1358569490 is about 36858.7776520058. Note that the first 3 decimals coincide. The cubic root of 1358569490 is about 1107.5430573989.

The spelling of 1358569490 in words is "one billion, three hundred fifty-eight million, five hundred sixty-nine thousand, four hundred ninety".