236897946 has 40 divisors (see below), whose sum is σ = 535565844. Its totient is φ = 78261120.

The previous prime is 236897933. The next prime is 236897951. The reversal of 236897946 is 649798632.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 228342321 + 8555625 = 15111^2 + 2925^2 .

It is a super-2 number, since 2×236897946² = 112241273638037832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 236897892 and 236897901.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11836 + ... + 24776.

Almost surely, 2^236897946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 236897946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267782922).

236897946 is an abundant number, since it is smaller than the sum of its proper divisors (298667898).

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

236897946 is a wasteful number, since it uses less digits than its factorization.

236897946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13068 (or 13059 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 236897946 is about 15391.4894016141. The cubic root of 236897946 is about 618.7574368252.

The spelling of 236897946 in words is "two hundred thirty-six million, eight hundred ninety-seven thousand, nine hundred forty-six".