623042901 has 32 divisors (see below), whose sum is σ = 1006656000. Its totient is φ = 378540864.

The previous prime is 623042899. The next prime is 623042909. The reversal of 623042901 is 109240326.

623042901 is a `hidden beast` number, since 6 + 230 + 429 + 0 + 1 = 666.

It is not a de Polignac number, because 623042901 - 2¹ = 623042899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623042909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16495 + ... + 38963.

It is an arithmetic number, because the mean of its divisors is an integer number (31458000).

Almost surely, 2^623042901 is an apocalyptic number.

It is an amenable number.

623042901 is a deficient number, since it is larger than the sum of its proper divisors (383613099).

623042901 is a wasteful number, since it uses less digits than its factorization.

623042901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22570 (or 22564 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 623042901 is about 24960.8273300386. The cubic root of 623042901 is about 854.0946156233.

The spelling of 623042901 in words is "six hundred twenty-three million, forty-two thousand, nine hundred one".