196532390 has 16 divisors (see below), whose sum is σ = 372377520. Its totient is φ = 74475360.

The previous prime is 196532383. The next prime is 196532411. The reversal of 196532390 is 93235691.

It is a super-2 number, since 2×196532390² = 77249960638224200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517001 + ... + 517380.

It is an arithmetic number, because the mean of its divisors is an integer number (23273595).

Almost surely, 2^196532390 is an apocalyptic number.

196532390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196532390 is a deficient number, since it is larger than the sum of its proper divisors (175845130).

196532390 is a wasteful number, since it uses less digits than its factorization.

196532390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034407.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 196532390 is about 14019.0010343105. The cubic root of 196532390 is about 581.4040399536.

The spelling of 196532390 in words is "one hundred ninety-six million, five hundred thirty-two thousand, three hundred ninety".