1402109690 has 16 divisors (see below), whose sum is σ = 2610825480. Its totient is φ = 541504320.

The previous prime is 1402109659. The next prime is 1402109701. The reversal of 1402109690 is 969012041.

It can be written as a sum of positive squares in 4 ways, for example, as 893471881 + 508637809 = 29891^2 + 22553^2 .

It is a super-2 number, since 2×1402109690² = 3931823165583792200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2417141 + ... + 2417720.

Almost surely, 2^1402109690 is an apocalyptic number.

1402109690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1402109690 is a deficient number, since it is larger than the sum of its proper divisors (1208715790).

1402109690 is a wasteful number, since it uses less digits than its factorization.

1402109690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834897.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1402109690 is about 37444.7551734552. The cubic root of 1402109690 is about 1119.2505855045.

The spelling of 1402109690 in words is "one billion, four hundred two million, one hundred nine thousand, six hundred ninety".