23490770 has 16 divisors (see below), whose sum is σ = 44770968. Its totient is φ = 8843520.

The previous prime is 23490769. The next prime is 23490833. The reversal of 23490770 is 7709432.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23261329 + 229441 = 4823^2 + 479^2 .

It is a Curzon 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, 68921 + ... + 69260.

Almost surely, 2^23490770 is an apocalyptic number.

23490770 is a deficient number, since it is larger than the sum of its proper divisors (21280198).

23490770 is a wasteful number, since it uses less digits than its factorization.

23490770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138205.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 23490770 is about 4846.7277621092. The cubic root of 23490770 is about 286.3952105485.

The spelling of 23490770 in words is "twenty-three million, four hundred ninety thousand, seven hundred seventy".