34640190 has 128 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 8346240.

The previous prime is 34640189. The next prime is 34640191. The reversal of 34640190 is 9104643.

34640190 is a `hidden beast` number, since 3 + 4 + 640 + 19 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (34640189) and next prime (34640191).

It is a super-2 number, since 2×34640190² = 2399885526472200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34640191) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 249141 + ... + 249279.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^34640190 is an apocalyptic number.

34640190 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34640190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50803200).

34640190 is an abundant number, since it is smaller than the sum of its proper divisors (66966210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34640190 is a wasteful number, since it uses less digits than its factorization.

34640190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 34640190 is about 5885.5917289598. The cubic root of 34640190 is about 325.9818512737.

The spelling of 34640190 in words is "thirty-four million, six hundred forty thousand, one hundred ninety".