1238212190 has 32 divisors (see below), whose sum is σ = 2255164416. Its totient is φ = 489448960.

The previous prime is 1238212163. The next prime is 1238212207. The reversal of 1238212190 is 912128321.

It is a super-3 number, since 3×1238212190³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431360 + ... + 434220.

It is an arithmetic number, because the mean of its divisors is an integer number (70473888).

Almost surely, 2^1238212190 is an apocalyptic number.

1238212190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1238212190 is a deficient number, since it is larger than the sum of its proper divisors (1016952226).

1238212190 is a wasteful number, since it uses less digits than its factorization.

1238212190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1238212190 is about 35188.2393705624. The cubic root of 1238212190 is about 1073.8205026069.

The spelling of 1238212190 in words is "one billion, two hundred thirty-eight million, two hundred twelve thousand, one hundred ninety".