246981890 has 8 divisors (see below), whose sum is σ = 444567420. Its totient is φ = 98792752.

The previous prime is 246981829. The next prime is 246981937. The reversal of 246981890 is 98189642.

It can be written as a sum of positive squares in 2 ways, for example, as 246898369 + 83521 = 15713^2 + 289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×246981890² = 122000107975944200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12349085 + ... + 12349104.

Almost surely, 2^246981890 is an apocalyptic number.

246981890 is a deficient number, since it is larger than the sum of its proper divisors (197585530).

246981890 is a wasteful number, since it uses less digits than its factorization.

246981890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24698196.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 246981890 is about 15715.6574790875. The cubic root of 246981890 is about 627.4152009979.

The spelling of 246981890 in words is "two hundred forty-six million, nine hundred eighty-one thousand, eight hundred ninety".