148400786 has 16 divisors (see below), whose sum is σ = 236244600. Its totient is φ = 69672960.

The previous prime is 148400741. The next prime is 148400797. The reversal of 148400786 is 687004841.

It can be written as a sum of positive squares in 4 ways, for example, as 113955625 + 34445161 = 10675^2 + 5869^2 .

It is a super-4 number, since 4×148400786⁴ (a number of 34 digits) contains 4444 as substring.

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, 10406 + ... + 20126.

Almost surely, 2^148400786 is an apocalyptic number.

148400786 is a deficient number, since it is larger than the sum of its proper divisors (87843814).

148400786 is a wasteful number, since it uses less digits than its factorization.

148400786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10189.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 148400786 is about 12181.9861270648. The cubic root of 148400786 is about 529.4342913721.

The spelling of 148400786 in words is "one hundred forty-eight million, four hundred thousand, seven hundred eighty-six".