70780190 has 32 divisors (see below), whose sum is σ = 138227040. Its totient is φ = 25939584.

The previous prime is 70780181. The next prime is 70780201. The reversal of 70780190 is 9108707.

It is a super-2 number, since 2×70780190² = 10019670592872200, which contains 22 as substring.

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, 16112 + ... + 20028.

It is an arithmetic number, because the mean of its divisors is an integer number (4319595).

Almost surely, 2^70780190 is an apocalyptic number.

70780190 is a deficient number, since it is larger than the sum of its proper divisors (67446850).

70780190 is a wasteful number, since it uses less digits than its factorization.

70780190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4076.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 70780190 is about 8413.0963384476. The cubic root of 70780190 is about 413.6540124718.

Adding to 70780190 its reverse (9108707), we get a palindrome (79888897).

The spelling of 70780190 in words is "seventy million, seven hundred eighty thousand, one hundred ninety".