235964640 has 48 divisors (see below), whose sum is σ = 743290128. Its totient is φ = 62923776.

The previous prime is 235964633. The next prime is 235964671. The reversal of 235964640 is 46469532.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×235964640² = 111358622660659200, 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 7 ways as a sum of consecutive naturals, for example, 245317 + ... + 246276.

It is an arithmetic number, because the mean of its divisors is an integer number (15485211).

Almost surely, 2^235964640 is an apocalyptic number.

235964640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235964640 is an abundant number, since it is smaller than the sum of its proper divisors (507325488).

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

235964640 is a wasteful number, since it uses less digits than its factorization.

235964640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491611 (or 491603 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 235964640 is about 15361.1405826521. The cubic root of 235964640 is about 617.9437952258.

The spelling of 235964640 in words is "two hundred thirty-five million, nine hundred sixty-four thousand, six hundred forty".