19342690 has 16 divisors (see below), whose sum is σ = 35627328. Its totient is φ = 7556976.

The previous prime is 19342669. The next prime is 19342691. The reversal of 19342690 is 9624391.

It is a super-2 number, since 2×19342690² = 748279312872200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19342691) by changing a digit.

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, 22062 + ... + 22921.

It is an arithmetic number, because the mean of its divisors is an integer number (2226708).

Almost surely, 2^19342690 is an apocalyptic number.

19342690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19342690 is a deficient number, since it is larger than the sum of its proper divisors (16284638).

19342690 is a wasteful number, since it uses less digits than its factorization.

19342690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45033.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 19342690 is about 4398.0325146593. The cubic root of 19342690 is about 268.4348864829.

It can be divided in two parts, 1934 and 2690, that added together give a square (4624 = 68²).

The spelling of 19342690 in words is "nineteen million, three hundred forty-two thousand, six hundred ninety".